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Borg Mechanical Digital BL5051MGPROECP – Back-to-Back Lever/Lever – Marine Grade Pro – Easicode – Black

Borg

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SKU:
STK BL5051MGPROECP
UPC:
1634356449795
Availability:
Usually same day dispatch (if ordered before 11am)
Colour/Finish:
Black
Type of Handle:
Lever
Back-Set:
60mm
Type of Lock:
Tubular Latch
Access Method:
Pin Code
Feature:
Marine Grade
Feature:
Rain Resistant
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Borg Locks logo

Borg BL5051MGPROECP Marine Grade Pro Mechanical Digital Lock - Lever/Lever Back-to-Back - Easicode Pro - Black

At A Glance

At A Glance
PIN code both sidesPIN Code (Both Sides)

The Borg BL5051MGPROECP is a fully mechanical digital lock in a lever/lever back-to-back (BTB) configuration: a full lever keypad on both faces of the door, each with its own independent coding chamber, driving a 60mm tubular latch. A code is required to pass through in either direction - with a different code on each side if wanted.

It combines two of Borg's designations in one lock: Marine Grade Pro construction - 316 stainless steel internal components under the black MG Pro 2 marine coating, salt spray tested to 1,000 hours - and Easicode Pro (ECP) on-door code change, so the code on either side changes on the door with the change key, with no lock removal.

Borg makes the BL5000 series for medium to heavy duty doors and cycle tests it to 100,000 operations. Being entirely mechanical, it has no batteries, wiring or electronics to fail in salt air - an advantage over electronic locks in coastal conditions. Because a code is needed to get out, it is not for fire doors, emergency exit or fire egress doors. Browse the full battery-free range in our Digital Mechanical Locks category.

Dispatch
Estimated Dispatch
Usually ships same day if ordered before 11am AEST (excludes weekends and Queensland public holidays).
Marine Grade Pro
Marine Grade Pro - 316 Stainless Steel - 1,000 Hour Salt Spray Tested
316 stainless steel internal components under the MG Pro 2 black marine coating, salt spray tested to 1,000 continuous hours - a laboratory cabinet result (the finish held up that long in continuous salt fog), not a promise of service life on the coast. Built for coastal, beachside, poolside and marine positions where standard finishes corrode early - see whether you need MG Pro and our honest brand-by-brand corrosion comparison.
Corrosion resistance
Corrosion Resistance Warranted - 12 Months
Borg warrants the corrosion resistance of this Marine Grade Pro lock for 12 months from date of sale under specified conditions - follow the routine in the maintenance notes; see the warranty details.
Not for fire doors
Not for Fire Doors, Emergency Exit or Fire Egress Doors
This back-to-back lock needs a code to get out: full keypads sit on both faces, and the inside lever will not withdraw the latch until the correct PIN is entered. It is not for fire doors, and not for emergency exit or fire egress doors; see exit paths on double-sided locks. If free inside egress is required, choose the single-sided BL5001MGPROECP - Marine Grade Pro and Easicode Pro with an inside lever that always opens, though not fire tested - or, for a fire door, the fire tested Borg BL5001.
Easicode Pro code change
Easicode Pro - Change the Code on the Door, Each Side
With Easicode Pro (ECP) the keypads stay on the door - Borg puts the change at about 10 seconds. With the door open, enter the current code on the side you are changing, put the change key over the code change button, turn it 90 degrees clockwise and hold it in, press C, then enter the new code twice. Release the key, turn it back and remove it, then press C or turn the lever to set the new code - and test it five times before the door closes. Each side is changed independently. The change key is in the box (a spare is the BL5000ECPCK), and so is the code change deactivation plug, which stops anyone re-coding a keypad on the door once your code is set. Step by step in how the Borg on-door change works and the 5000 series in action. Never force the change key - here is why.
Independent coding chambers
Independent Coding Chambers - Different Codes Each Side
Each keypad has its own mechanical coding chamber. Both sides can share one code, or each side can run a different code - a shared entry code with a staff-only exit code, for example.
Free passage
Free Passage - the F Button, Per Side
Either side can be set to free passage: enter that side's code, turn the lever and press F - the lever stays free turning and withdraws the latch, so that side opens without a code. To lock it again, turn the lever and press C; you will hear a click as the coding chamber resets. Each side is set independently. If you never want the function, the free passage deactivation plug in the box fits into the F slot on the back of a keypad and switches it off until the keypad is taken off the door. Passage mode explained and free passage on commercial doors.
No batteries icon
Fully Mechanical - No Batteries Required
Entirely mechanical - no power source, no wiring, no batteries to go flat. Weighing this against an app-connected lock? See mechanical digital vs smart locks and Buyer's Guide Chapter 16.
Suitable use icon
Designed for medium to heavy usage areas
Coastal gates, plant rooms, storerooms and staff-only doors where both-sided code control is the requirement and codes change on site. Borg makes the BL5000 series for medium to heavy duty doors, with a strengthened clutch and coding chamber, and cycle tests it to 100,000 operations.
Not suitable icon
Not recommended for extremely high traffic without a servicing schedule
For relentless commercial traffic, step up to the Lockwood 3572DX, Borg BL7701, or Carbine CDL7200LL-HD - see what heavy duty actually means.
Single PIN per keypad
Single PIN Code Per Keypad
Each keypad holds one active PIN code at a time (the two sides can differ). No multi-user code list and no audit trail - the honest limitation of every mechanical digital lock; see what these locks will not do.

Access Methods

This is a mechanical digital lock with a lever keypad on both faces: the correct code opens the door from either side, and there is no free inside lever. There is no key override, app, fob or card on this model - for keyed entry on a back-to-back, see the BL5771MGPROECP in the range table below.

MethodAvailableNotes
PIN CodeYes - both sidesLever keypad on each face with its own coding chamber (the two codes can differ) - over 1,000 combinations per side, digits in any order, Easicode Pro code change on the door. Browse all PIN code locks.

Key Features

  • Lever/lever back-to-back keypads - a code is required from both sides; no free inside egress.
  • Independent coding chambers - a different code can be set on each side, each changed on the door.
  • Easicode Pro (ECP) on-door code change with the supplied change key - no lock removal; code change deactivation plug included.
  • Free passage function (F button) per side - hold either side open during business hours; free passage deactivation plug included.
  • Marine Grade Pro 2 black external coating over 316 stainless steel internal components.
  • Salt spray tested to 1,000 hours; corrosion resistance warranted for 12 months.
  • Medium to heavy duty BL5000 series - strengthened clutch and coding chamber, cycle tested to 100,000 operations.
  • Over 1,000 non-sequential code combinations per keypad (Borg Easicode Pro instructions), digits entered in any order.
  • Not for fire doors, emergency exit or fire egress doors - a code is required to exit from inside.
  • Fully mechanical - no batteries, no wiring, nothing electronic to corrode.
  • 60mm anti-thrust stainless steel tubular latch; the black MG Pro 70mm latch is available separately.
  • Clutching lever design - with no valid code the lever rotates freely without withdrawing the latch, so it cannot be forced.
  • Door thickness 35mm to 80mm on the standard fixings; up to 85mm with the XL fixing kit.
  • Reversible on site for left or right hand doors - no handed ordering.

What's in the Box

  • Borg BL5051MGPROECP outside keypad and lever assembly (black MG Pro 2)
  • Inside keypad and lever assembly - identical unit (black MG Pro 2)
  • 60mm anti-thrust stainless steel tubular latch
  • Strike plate and box keep
  • 2 x spindles (80mm and 90mm)
  • M4 stainless steel fixing screws (40mm, 50mm and 60mm options)
  • 4 x 16mm screws
  • Easicode Pro code change key
  • Code change deactivation plug (optional fit)
  • Free passage deactivation plug (optional fit)
  • Hex wrench (Allen key)
  • Handle screw rubber grommet

A black MG Pro 70mm latch and the XL fixing kit for 85mm doors are available separately - see Accessories and Spare Parts. No batteries or wiring are required or supplied.

Suitable Uses

  • Coastal, beachside, poolside and marine positions needing code control in both directions - see our external gate exposed to rain category and when to consider a double-sided lock.
  • External gates, plant rooms, utility rooms and access doors at marinas, surf clubs and waterfront sites where entry and exit are both restricted.
  • Strata and managed coastal properties where codes change on site - Easicode Pro makes it a change on the door.
  • Two-zone control - a shared entry code on one side and a staff-only code on the other, using the independent coding chambers.
  • Sites replacing corroded electronic keypads - a fully mechanical lock removes the coastal failure modes of electronic locks altogether.
  • Not for fire doors, emergency exit or fire egress doors - a code is needed to get out (see the warning above).

Available Finish Options

The black MG Pro 2 coating goes with the Marine Grade Pro construction. The chrome plate BL5051MGECP is the same back-to-back Easicode Pro lock in external grade - not for coastal positions.

Borg Back-to-Back Range Compared

Every model below puts a keypad on both sides of the door, all fully mechanical with no batteries. The differences are the lock format, the key function, the code change method and the weather grade.

Item Code Lock Format Key Function Code Change Grade Door Thickness
BL5051
3 finish variants
Tubular latch (60mm) None On The Bench Polished Chrome / Satin Chrome / Black MG Pro (coastal) 35-80mm
BL5051MGECP
Standalone listing
Tubular latch (60mm) None ECP - on-door, no removal External grade chrome plate 35-80mm
BL5051MGPROECP
This Product
Tubular latch (60mm) None ECP - on-door, no removal Marine Grade Pro - 316 SS - 1,000hr salt spray 35-80mm
BL5771MGPROECP
Standalone listing
Tubular latch (60mm) Key entry override - both sides ECP - on-door, no removal Marine Grade Pro - 316 SS - 1,000hr salt spray 35-54mm
BL5050SC
Standalone listing
Euro mortice lockcase Key lockout - cylinder disables keypads On The Bench Satin chrome - internal 35-54mm
BL5151SC
Knob keypad one side
Tubular latch (60mm) None On The Bench Satin chrome 35-54mm

ECP = Easicode Pro on-door code change. MG Pro = Marine Grade Pro. Combinations are per side on every model. Want a knob keypad with a free inside exit instead? The single-sided BL5101 is a knob keypad lock on the same platform.

Accessories and Spare Parts

Borg supports the 5000 series platform with a full spare parts range - one of the reasons it outlasts hardware store imitations. Match the grade on a coastal installation: black MG Pro parts keep the lock's corrosion grade.

Item Code Part Notes for This Lock
BL5000ECPCK Easicode Pro code change key, blue, 5000 series A spare on-door change key for this lock's Easicode Pro keypads - keep one with the site manager
BL5000KMG Spare lever keypad, external grade, chrome plated A replacement 5000 series keypad in chrome plate - not Marine Grade Pro, and its code change method may differ from this lock's; ask us before ordering it for this marine lock
BLSMGPRO560 / BLSMGPRO570 MG Pro tube latch, black, 60mm or 70mm backset The direct latch spare and the 70mm backset option in the same marine grade
BLL5000 / BLL500070 Tube latch, satin chrome, 60mm or 70mm backset Satin chrome alternatives where finish is not a concern - not marine grade
BLS275000LH / BLS275000RH 28mm backset latch, satin chrome, handed For narrow stiles - satin chrome, not marine grade; confirm the fit with this lock with us before ordering
SPBL5001MB Scar plates, black, packet of 2 The colour-matched black plates for this lock - the pair covers both faces
SPBL5001 Scar plates, stainless steel, packet of 2 The stainless alternative
BL5000GASKET Rubber gasket, box of 2 Gaskets between the keypad bodies and the door face - a box of 2 covers both sides
BL5000SPRING Complete spring accessories packet, 5000 series The full internal spring rebuild set - the usual first fix for a lazy lever return
BL50013572KBTB Adaptor kit - Lockwood 3572 mortice, back-to-back Mounts 5000 series keypads on both faces of an existing Lockwood 3572 mortice prep - a code is then needed to leave as well as enter, so it is not for an exit path; see retrofit kits explained
BL50013572K Adaptor kit - Lockwood 3572 mortice The single-sided 3572 conversion for the wider 5000 series family
BL50013582K Adaptor kit - Lockwood 3582 mortice (open out only) The Lockwood 3582 conversion for outward-opening doors only
LB22 BDS weld-on lock box, galvanised steel, 202 x 200 x 35mm, silver Mounts a Borg 5000 series lock on a steel gate at 60mm backset - the box is welded on by a welding shop; ask us to confirm the fit for this back-to-back

The XL fixing kit for 85mm doors can be arranged through us - contact us. Browse all tubular latches and bolts and scar and adaptor plates.

Full Specifications

Brand Borg Locks
Item Code BL5051MGPROECP
Series BL5000 MG Pro ECP - Back-to-Back Lever/Lever
Finish Black MG Pro 2 marine external coating
Internal Components 316 stainless steel
Salt Spray Testing 1,000 hours continuous (laboratory cabinet test)
Configuration Back-to-back - identical lever keypad unit on both faces; code required from both sides
Inside Egress Code required to exit - no free inside lever
Coding Chambers Independent per side - a different code can be set on each side
Code Change Easicode Pro (ECP) - on the door with the change key, per side, no lock removal; code change deactivation plug included
Code Combinations Over 1,000 per keypad (Borg Easicode Pro instructions), non-sequential, digits entered in any order
PIN Codes Stored Single active PIN per side (the two sides can differ)
Buttons (each keypad) 10 numbered (1-5 / 6-0) + F (free passage) + C (clear), plus the code change button for the change key
Free Passage Function Yes - F button, engaged and released per side; free passage deactivation plug included
Lever Action Clutching - lever spins freely without a valid code, cannot be forced against the latch
Key Override No - see the BL5771MGPROECP for keyed override both sides
Latch 60mm anti-thrust stainless steel tubular latch
Backset 60mm standard; 70mm MG Pro latch available separately
Spindle 8mm bladed; 80mm and 90mm spindles supplied
Door Thickness 35-80mm (standard fixings); up to 85mm with the XL fixing kit
Fire Doors Not for fire doors, emergency exit or fire egress doors (code required to exit)
Handing Reversible on site - suits left and right hand doors
Operation Type Fully mechanical - no batteries, no power, no electronics
Duty Medium to heavy (Borg BL5000 series); cycle tested to 100,000 operations
Warranty 12 months from date of sale; corrosion resistance warranted 12 months - see Warranty

Dimensions

The BL5051MGPROECP uses the same BL5000 series keypad body on both faces of the door - the inside unit is identical to the outside unit, not a slim handle plate.

Keypad body (each side) 177mm high x 48mm wide
Body depth from door face 26mm (each side)
Lever The drawing below also marks the lever at 115mm and 89mm
Backset 60mm standard (70mm latch available separately)
Door thickness (standard fixings) 35-80mm
Door thickness (XL fixing kit) Up to 85mm
Borg BL5051MGPROECP back-to-back keypad and lever dimensional drawing - 177mm high, 48mm wide and 26mm deep, with the lever
Back-to-back keypad and lever - 177mm H x 48mm W x 26mm body depth; the drawing also marks the lever at 115mm and 89mm. Full-width drawings are in the Dimensions tab.

Frequently Asked Questions

How do I change the PIN code?
With the door open, enter the current code on the side you are changing. Put the change key over the code change button, turn it 90 degrees clockwise and hold it in, press C, then enter the new code twice. Release the key, turn it back and remove it, then press C or turn the lever to set the new code, and test it at least five times with the door open. Repeat on the other side if that code is changing too - the chambers are independent. Step by step with photos: the ECP procedure.
Why does this lock need a code from the inside?
The BL5051MGPROECP puts a full keypad on both faces, so access is controlled in both directions - the point of a back-to-back on gates and secure rooms, and why single-sided locks fall short on gates. It also means this lock is not for fire doors, emergency exit or fire egress doors. If free exit is required, choose the single-sided BL5001MGPROECP (not fire tested) or, for a fire door, the BL5001.
Is this lock suitable right on the beachfront?
Yes - that is what Marine Grade Pro is for: 316 stainless steel internals under a marine coating salt spray tested to 1,000 hours - a laboratory cabinet result, not a promise of service life - with corrosion resistance warranted for 12 months under specified conditions. Keep to the monthly silicone routine in the Borg Servicing Guide (PDF). Background: salt spray ratings explained.
Can each side have a different code?
Yes. Each keypad has its own independent coding chamber. Both sides can share one code, or each can be set to a completely different code - each changed on the door, independently, with the same change key. The free passage function is also engaged and released per side.
Which spindle do I use for my door thickness?
Two spindles are supplied (80mm and 90mm) - use the longest that fits. The working rule is door thickness plus 30mm as the minimum spindle length, because at least 15mm of blade must seat into each side's keypad. A 50mm door therefore needs at least the 80mm spindle. Never cut a spindle shorter than necessary. Doors thicker than 80mm need the XL fixing kit (to 85mm) - contact us.

Additional Information

Maintenance:
Monthly: wipe both keypads, both levers and the exposed latch with a light spray of silicon-based lubricant (such as GT85) and remove the excess with a soft cloth. Do not use oil-based lubricants such as WD-40 - they attract dirt and wear down internal parts over time. Annually: remove the keypads from the door, spray the inside through the holes on the reverse of each keypad with silicon-based lubricant, spray all fixings, accessories and the latch, then press each button and operate both levers several times to confirm smooth operation. Full steps are in the Borg Lock Servicing Guide (PDF). In salt air, keep strictly to the monthly routine.
Not for Fire Doors:
This back-to-back lock needs a code to get out, so it is not for fire doors, emergency exit or fire egress doors. For a fire door or a door on an exit path, choose a single-sided lock with a free inside lever - the BL5001 is fire tested to AS 1905.1-2005. See what is actually compliant on apartment fire doors.
Retrofitting a Lockwood 3572 Mortice:
If the door already carries a Lockwood 3572 mortice lock, the BL50013572KBTB back-to-back adaptor kit mounts 5000 series keypads on both faces of the existing mortice prep - no re-boring the door for the tubular latch. A code is then needed to leave as well as enter, so the same exit path caution applies.
Lost Code Recovery:
There is no key override on this model, so a lost code on a locked door is a locksmith job - contact us. With a keypad off the door, the code can be read through the portholes on the back of the keypad - the procedure is in the BL5000 Easicode Pro manual (PDF). If a keyed bypass matters for your site, choose the BL5771MGPROECP instead.
Keep the Change Key With One Person:
On a managed site, keep the change key with the site manager and fit the code change deactivation plug on the public-facing side before the keypad goes on the door. Routine code changes stay with one keyholder, and nobody outside can re-code that keypad - see how the change key works and spare change keys.

Warranty

Warranty
Borg Locks Warranty - 12 Months (Australia)
All Borg locks are warranted against mechanical defects in materials and workmanship under normal use and service for a minimum of 12 months from date of sale. The warranty does not cover damage arising from misuse, vandalism, or improper installation. The lock must not be dismantled - doing so will invalidate the warranty. Proof of purchase required for all claims.
Purchased through Terry's Tradies Pty Ltd or one of its associated trading names? Contact us first - we will manage your warranty claim with the Australian distributor (LSC) on your behalf. This warranty operates alongside your rights under the Australian Consumer Law.

Download PDF Resources

Borg BL5000 Series Easicode Pro Manual (PDF)
Borg's six-page Easicode Pro manual for the BL5000 ECP range - handing, deactivating free passage and the on-door code change, spindle fitting, the on-door code change itself, daily operation and finding a lost code. This is the manual for this lock's keypads.
Borg BL5000 Easicode Pro Instructions (V2) (PDF)
Borg's current Easicode Pro instruction set for the BL5000 ECP keypads - preparation, handing, deactivating free passage and code change, spindle fitting, the on-door code change and daily operation. The spindle fitting notes are the most detailed of any Borg document.
Borg BL5000 Easicode Pro Brochure (PDF)
Borg's two-page brochure for the BL5000 round bar Easicode Pro range - series options including the BL5051 ECP back-to-back with tubular latch, features and finishes.
Borg BL5000 Marine Grade Pro Easicode Pro Brochure (PDF)
Borg's two-page Marine Grade Pro Easicode Pro brochure - MG Pro construction and salt spray testing, with the BL5200 and BL5700 families pictured. The Marine Grade Pro construction and testing it describes are what this lock carries; the models pictured are not this lock.
Borg BL5000 Series Brochure (PDF)
The BL5000 series in one page - handle styles (round bar, flat bar and knob), locking options including the back-to-back model, features (over 2,000 combinations, 100,000 cycles, free passage), finishes and dimensioned drawings of the keypads and inside handles. It is the On The Bench series brochure - the features and dimensions carry over, but this Easicode Pro lock changes its code on the door.
Borg BL5001, BL5201 and BL5401 Drilling Template (PDF)
One-page drilling template (159mm hole centres, 60mm or 70mm backset) named for the single-sided BL5001, BL5201 and BL5401 lever locks. Check the fixing positions for this back-to-back with us before drilling.
Borg 5000 Series Accessories Sheet (PDF)
Borg's one-page accessories sheet for the 5000 series - the BL5000KSC / BL5000KSS keypad-only units, the Lockwood mortice conversion kits and the SPBL5001 scar plates. The keypad-only units on the sheet are the standard On The Bench keypads, not Easicode Pro.
Borg Lock Servicing Guide (PDF)
Borg's general maintenance guide for pushbutton keypad locks - monthly silicone-based lubricant care and an annual full service. This is the routine to follow for this lock.
Borg Locks logo

Borg BL5051MGPROECP - FAQ, Setup and Owner's Guide

Everything owners and installers ask about the BL5051MGPROECP back-to-back keypad lock, in one place. For the wider picture, see Buyer's Guide Chapter 16 - Mechanical Digital Locks and the what is a mechanical digital lock explainer.

Codes and Code Change

How do I change the code, step by step?
With the door open, enter the current code on the side you are changing. Put the change key over the code change button, turn it 90 degrees clockwise and hold it in, press C, then enter the new code twice. Release the key, turn it back and remove it, then press C or turn the lever to set the new code, and test it at least five times with the door open. Repeat on the other side if that code is changing too - the chambers are independent. Full illustrated procedure: the 3000/5000 series ECP steps and the BL5000 Easicode Pro manual (PDF).
I changed the code and now it does not work - what happened?
The most common cause: C was not pressed between clearing the old code and entering the new one. The chamber is then set to a combination of both codes - if the old code was 1234 and the new one 6789, the live code is 12346789. Enter the old and new codes together, then run the change procedure again from the start. If the lever free-turns after a change, the new code was never set - repeat from the key step.
Does the order I press the buttons in matter?
No. The chamber is non-sequential - a code of 1234 opens with 4321, 3214 or any other order of the same digits. This is standard mechanical digital chamber behaviour. Over 1,000 combinations are available per keypad.
Can the inside and outside keypads run different codes?
Yes. Each keypad has a fully independent coding chamber. Set both to the same code for simplicity, or run different codes - a widely shared code on one side and a restricted code on the other, for example. Each side is changed separately with the same change key.
We have lost the code - can it be recovered?
Yes, but the keypad must come off the door. On the back of the keypad are ten portholes showing blue and red indicator lines - press C first, then read which portholes show a red line closest to the centre: those digits are the code. The porthole diagram is in the BL5000 Easicode Pro manual (PDF). Note the code before refitting. If neither side has a known code and the door is shut, it is a locksmith visit - contact us. There is no key override on this model.
Can I stop other people changing the code?
Yes. The box includes a code change deactivation plug. Fitted into the marked hole on the back of a keypad before installation, it disables the on-door code change for that side - the keypad must come off the door to re-enable it. Useful in shared facilities where only management should control codes.
Can multiple people have their own codes, and is there a record of who came through?
No - one active code per keypad, no user list, no audit trail. That is the honest trade-off of every mechanical digital lock against an app-based system: see what these locks will not do and mechanical vs smart compared.

Operation and Free Passage

What is the correct way to open the door day to day?
Press C first - this clears any buttons a previous user may have part-pressed - then enter the code and push the lever down. Release the lever and the keypad resets behind you. The same sequence applies on both sides.
How do I set the lock to free passage so no code is needed?
Enter the code, turn the lever and press F. That side is now free turning - anyone can operate it without the code. To lock it again, turn the lever and press C until you hear the click; the chamber resets and the code is required again. Each side goes in and out of free passage independently. Background: passage mode explained and when passage mode makes sense.
When should free passage not be used?
Never leave free passage engaged on a pool barrier gate, which must self-latch at all times - see why passage mode and pool gates do not mix. And as a back-to-back, this lock is not for fire doors at all. If free passage will never be needed, fit the free passage deactivation plug into the slot behind the F button before installation.
Why would anyone want a lock that needs a code to get out?
Controlled egress: stopping unaccompanied exit from secure yards, staff-only rear doors or compounds where a reach-over defeat of a one-sided keypad is the risk. If you only need entry control, the single-sided BL5001MGPROECP keeps a free lever inside - see when double-sided control is the right call.

Installation and Handing

The lever points the wrong way for my door - can I reverse it?
Yes, on site. Units ship preset right-hand. To change hand, remove the grommet on the side of the keypad handle to expose the grub screw, remove the screw with the supplied hex wrench, refit the handle facing the correct direction and tighten the screw back in. Repeat on the other keypad. The handing diagrams are in the user manual (PDF) - set the handing before the keypads go on the door.
Which spindle do I use, and can I cut it down?
Two spindles are supplied (80mm and 90mm) - use the longest that fits. Rule: door thickness + 30mm = minimum spindle length, because 15mm of blade must seat into each keypad. A 44mm door needs a 74mm minimum, so use the 80mm. When fitting, angle the blade toward the top opening edge of the door. Never cut shorter than necessary - an over-trimmed spindle can slip out of position if the door is slammed, locking users out.
My door is thicker than 80mm - can this lock still fit?
Standard fixings suit 35-80mm doors, and the XL fixing kit extends that to 85mm - contact us before ordering if your door is in that band. For thicker doors and gates, ask us whether the BLS527A XXL extended spindle kit (doors and gates up to 120mm) suits this back-to-back.
My gate frame is narrow - will the standard latch fit?
The standard 60mm backset tubular latch needs a stile deep enough to take it. For narrow stiles there is a 28mm backset latch for the BL5000 series (BLS275000LH / BLS275000RH, handed, satin chrome) - confirm the fit with us first. Measure before ordering: gate post too narrow for a 60mm latch? On a steel gate, the BDS LB22 weld-on lock box takes a 60mm backset 5000 series lock.
Can I get a 70mm backset in the matching finish?
Yes - the BLSMGPRO570 MG Pro tube latch is the black marine grade 70mm latch, so the latch matches the lock's corrosion grade as well as its colour. The satin chrome BLL500070 also fits where finish is not a concern.
What should I check before final fitting?
Three checks from the manual: enter the factory code and confirm the lever turns down and returns under spring pressure, twice; confirm the handle on the other face turns and springs back with its code; and press the latch bolt end to confirm it springs out freely. Change the factory code before or after fitting - but always test it five times with the door open.
The door already has a Lockwood 3572 mortice - can this lock go straight on?
Yes, with the BL50013572KBTB back-to-back adaptor kit - it mounts 5000 series keypads on both faces of the existing 3572 mortice prep, driving the mortice instead of a tubular latch. A code is then needed to leave as well as enter. This retrofit range is a key advantage over hardware store lookalikes.

Marine Grade, Fire and Suitability

What does 1,000 hours of salt spray actually prove?
Salt spray testing holds the finish in a sealed cabinet of continuous salt fog; the hours are how long it went before corrosion appeared. It is a laboratory result, not a promise of service life on the coast - but 1,000 hours with 316 stainless steel internals behind the coating is a very different specification from a standard finish. The explainer at salt spray ratings puts the figure on the corrosion scale, and MG Pro 2 explained covers the coating.
Why choose a mechanical lock over a smart lock at the coast?
Electronics and salt air are a poor mix - corroded battery terminals, failed keypads and dead boards are the common coastal failure modes set out in the realities of electronic door locks. A fully mechanical Marine Grade Pro lock has none of those parts to fail, and the brand comparison sets Borg's MG Pro against the other brands' corrosion figures.
Is a code-to-exit lock allowed on a fire door?
No. A back-to-back lock needs a code to get out, so it is not for fire doors, and not for emergency exit or fire egress doors. For a fire door, choose a single-sided lock with a free inside lever: the BL5001 is fire tested to AS 1905.1-2005 (up to 4 hours, depending on the type of doorset). Background: exit paths, fire door certification, and why passage functions are not a fire-door fix.
How much traffic is too much for this lock?
It is a medium to heavy duty lock, cycle tested to 100,000 operations - but not built for extremely high traffic without a servicing schedule. On a main entry cycling hundreds of times a day, specify a genuine high-traffic heavy duty lock: the Lockwood 3572DX, Borg BL7701 or Carbine CDL7200LL-HD. What separates the tiers: heavy duty internals explained.

Range and Spares

BL5051MGPRO, BL5051MGECP, BL5051MGPROECP - what do the suffixes mean?
Borg's naming stacks the designations: MG = external weather grade, MG Pro = Marine Grade Pro (316 stainless internals, salt spray tested to 1,000 hours), ECP = Easicode Pro on-door code change. So the BL5051MGPRO is the black variant of the BL5051, changed On The Bench; the BL5051MGECP is external grade with ECP; and the BL5051MGPROECP is both - marine grade and on-door code change.
I want a knob instead of a lever - is there a back-to-back for that?
On one side, yes: the BL5151SC puts a knob keypad on one face and a lever keypad on the other - it changes its code On The Bench and is satin chrome for internal doors. If you need a knob keypad with a free inside exit, the single-sided BL5101 is that lock. Knobs are harder to operate with full hands or limited grip - the lever remains the accessible choice.
Which parts are actually replaceable if something wears?
Almost everything: the change key, the keypad unit (ask us first), the MG Pro latch, the spring pack and the gaskets - see the full Accessories and Spare Parts table. This spare parts depth is a core reason to buy a supported platform over a hardware store lookalike.
Is there any way in without the code?
No - this model has no key override, which is part of its security story: no cylinder to pick or bump. The trade-off is that a lost code on a shut door means a locksmith visit. If a key override matters, the BL5771MGPROECP puts Easicode Pro keypads and a key override on both faces, and the Carbine CDL7200LL-KDSC-HD offers dual-keypad control in the Carbine range.

Servicing and Troubleshooting

What routine maintenance does it need?
Monthly, a light wipe of both keypads, both levers and the exposed latch with a silicon-based lubricant (such as GT85) - never an oil-based lubricant such as WD-40, which draws grit into the chamber. Once a year, take the keypads off the door, spray through the holes on the back of each keypad and over the fixings and latch, then check every button and both levers. In salt air, keep strictly to the monthly routine. The full schedule is in the Borg Servicing Guide (PDF Files tab). Quality internals are why genuine trade locks outlast hardware store lookalikes - but only when serviced.
The code will not work even though it is correct - why?
Almost always a part-pressed button from a previous user. Press C firmly to reset the chamber, then enter the code again - which is why the C-first habit is worth teaching every user. If the code still fails after a C reset, run the lost-code porthole check to confirm what the chamber is actually set to.

Related Products, Guides and Chapters

This lock and its siblings: BL5051 - On The Bench, Three Finishes - BL5051MGECP - External Grade ECP - BL5771MGPROECP - BTB with Key Override - BL5050SC - Euro Mortice BTB, Key Lockout - BL5151SC - Knob/Lever BTB - BL5101 - Single-Sided Knob Keypad - BL5001 - Single-Sided, Free Egress - BL5001MGPROECP - Single-Sided Marine ECP

Accessories and spares: Spare Change Key - MG Pro Tube Latch 60/70mm Black - Spare Keypad - Chrome Plated - Black Scar Plates - 3572 BTB Adaptor Kit - Spring Accessories Packet - LB22 Weld-On Lock Box

Cross-brand alternatives: Carbine CDL7200LL-KDSC-HD Dual Keypad - Lockwood 3572DX - Borg BL7701 Heavy Duty - Carbine CDL7200LL-HD Dual Lever

Buyer's Guide chapters: Ch 16 Mechanical Digital Locks - Ch 16 Borg Naming Decoded - Ch 16 Code Changing Methods - Ch 16 Choosing a Model - Ch 10 Borg Brand Profile

Helpful blog reading: Changing Codes - Borg Easicode Pro - MG Pro and ECP Explained - Why Double-Sided Locks Suit Gates - Lockwood vs Borg vs Carbine - Heavy Duty Commercial Mech-Digi - Passage Mode vs Holdback Mode - The Realities of Electronic Door Locks - Why Our Range Beats Imitations

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What's In The Box - Borg BL5051MGPROECP

  • Borg BL5051MGPROECP outside keypad and lever assembly (black MG Pro 2)
  • Inside keypad and lever assembly - identical unit (black MG Pro 2)
  • 60mm anti-thrust stainless steel tubular latch
  • Strike plate and box keep
  • 2 x spindles (80mm and 90mm)
  • M4 stainless steel fixing screws (40mm, 50mm and 60mm options)
  • 4 x 16mm screws
  • Easicode Pro code change key
  • Code change deactivation plug (optional fit)
  • Free passage deactivation plug (optional fit)
  • Hex wrench (Allen key)
  • Handle screw rubber grommet
The inside and outside keypads are the same unit in black MG Pro 2 over 316 stainless steel internals. A black MG Pro 70mm latch and the XL fixing kit for 85mm doors are available separately - contact us. No batteries or wiring are required or supplied.
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Borg BL5051MGPROECP - Real Installations

Borg BL5051 mechanical digital lock installed by Terry's Locksmiths on grey metal side gate Robina Gold Coast
Installed by Terry's - Robina QLD
Borg BL5051 mechanical digital lock side view installed by Terry's Locksmiths on grey metal side gate Burleigh Heads Gold Coast
Installed by Terry's - Burleigh Heads QLD
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Borg BL5051MGPROECP - Dimensions

On this back-to-back model the inside unit is the same BL5000 series keypad body as the outside unit - both faces measure identically.

Borg BL5051MGPROECP back-to-back keypad and lever dimensional drawing - 177mm high, 48mm wide and 26mm deep, with the lever
Back-to-back keypad and lever drawing: keypad body 177mm high x 48mm wide and 26mm deep from the door face; the drawing also marks the lever at 115mm and 89mm. These are the figures used in the dimensions table on the Description tab.
Borg BL5000 series keypad dimensional drawing - 177mm high, 48mm wide and 26mm deep, with the lever
Borg's orthographic drawing of the BL5000 series keypad - 177mm high, 48mm wide and 26mm deep; the drawing also marks the lever at 115mm and 89mm. On this back-to-back model the same keypad sits on both faces of the door.

Standard 60mm backset (70mm latch available separately). Fixings suit doors 35-80mm on the standard kit; up to 85mm with the XL fixing kit.

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Borg BL5000 ECP and MG Pro ECP Series - Product Brochure

BL5000 ECP Series overview, features and Easicode Pro information
Page 1 - BL5000 ECP Series overview, features and Easicode Pro information
BL5000 ECP Series technical information, series options and dimensional drawings
Page 2 - BL5000 ECP Series technical information, series options and dimensional drawings
BL5000 MG Pro ECP Series overview, marine grade features and specifications
Page 3 - BL5000 MG Pro ECP Series overview, marine grade features and specifications
BL5000 MG Pro ECP Series technical information, series options and dimensional drawings
Page 4 - BL5000 MG Pro ECP Series technical information, series options and dimensional drawings
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PDF Files - Borg BL5051MGPROECP

Borg BL5000 Series Easicode Pro Manual (PDF)
Borg's six-page Easicode Pro manual for the BL5000 ECP range - handing, deactivating free passage and the on-door code change, spindle fitting, the on-door code change itself, daily operation and finding a lost code. This is the manual for this lock's keypads.
Borg BL5000 Easicode Pro Instructions (V2) (PDF)
Borg's current Easicode Pro instruction set for the BL5000 ECP keypads - preparation, handing, deactivating free passage and code change, spindle fitting, the on-door code change and daily operation. The spindle fitting notes are the most detailed of any Borg document.
Borg BL5000 Easicode Pro Brochure (PDF)
Borg's two-page brochure for the BL5000 round bar Easicode Pro range - series options including the BL5051 ECP back-to-back with tubular latch, features and finishes.
Borg BL5000 Marine Grade Pro Easicode Pro Brochure (PDF)
Borg's two-page Marine Grade Pro Easicode Pro brochure - MG Pro construction and salt spray testing, with the BL5200 and BL5700 families pictured. The Marine Grade Pro construction and testing it describes are what this lock carries; the models pictured are not this lock.
Borg BL5000 Series Brochure (PDF)
The BL5000 series in one page - handle styles (round bar, flat bar and knob), locking options including the back-to-back model, features (over 2,000 combinations, 100,000 cycles, free passage), finishes and dimensioned drawings of the keypads and inside handles. It is the On The Bench series brochure - the features and dimensions carry over, but this Easicode Pro lock changes its code on the door.
Borg BL5001, BL5201 and BL5401 Drilling Template (PDF)
One-page drilling template (159mm hole centres, 60mm or 70mm backset) named for the single-sided BL5001, BL5201 and BL5401 lever locks. Check the fixing positions for this back-to-back with us before drilling.
Borg 5000 Series Accessories Sheet (PDF)
Borg's one-page accessories sheet for the 5000 series - the BL5000KSC / BL5000KSS keypad-only units, the Lockwood mortice conversion kits and the SPBL5001 scar plates. The keypad-only units on the sheet are the standard On The Bench keypads, not Easicode Pro.
Borg Lock Servicing Guide (PDF)
Borg's general maintenance guide for pushbutton keypad locks - monthly silicone-based lubricant care and an annual full service. This is the routine to follow for this lock.
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Borg Locks Warranty

Borg products sold in Australia are covered against mechanical defects in materials and workmanship under normal use and service. Warranty claims are handled by Terry's Tradies Pty Ltd and its associated websites, trading names, and subsidiaries.

Warranty Summary

Warranty period12 months from date of sale
What is coveredMechanical defects in materials and workmanship under normal use and service
Australian distributorLSC - the authorised Australian importer and distributor for Borg Locks
Who handles your claimTerry's Tradies Pty Ltd - contact us in the first instance
Proof of purchaseRequired for all claims
Geographic coverageAustralia

What the Warranty Covers

  • Mechanical defects in materials and workmanship
  • Defects arising under normal use and service conditions
  • Repair or replacement of defective units at the discretion of the Australian distributor (LSC)

What the Warranty Does Not Cover

  • Damage arising from misuse, vandalism, or abuse
  • Damage resulting from improper installation
  • Locks that have been dismantled - dismantling invalidates the warranty
  • Normal wear and tear
  • Cosmetic damage not affecting function

How to Make a Claim

For full returns and warranty claim procedures, visit our Returns & Warranty page - this is kept up to date and is the authoritative reference for current claim steps.
  1. Contact Terry's Tradies Pty Ltd first if you purchased through us or one of its associated trading names - we will assess the issue and manage the warranty process with LSC on your behalf. You do not need to contact LSC or Borg Locks UK directly.
  2. Have your proof of purchase ready (receipt or order confirmation).
  3. Warranty claims for Borg products in Australia are processed through LSC, the authorised Australian importer and distributor. Where an item is returned to LSC, freight charges must be prepaid and the item returned within the warranty period.
  4. If LSC finds the returned item to be defective, it will be repaired or replaced, and a detailed assessment report is provided to the customer after examination.
Australian Consumer Law
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. The Borg manufacturer warranty above operates alongside - and does not limit - these statutory rights.
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