Borg BL2701MGPRO Marine Grade Pro Mechanical Digital Lock – Matt Black – Key Override
The Borg BL2701MGPRO is a fully mechanical digital lock from the BL2700 Marine Grade Pro series, developed specifically for coastal, marine, and external environments where salt air and moisture exposure are ongoing concerns. Internal components are manufactured from 316 grade stainless steel and the lock body carries Borg’s matt black Marine Pro grade finish — a coating developed to provide additional protection against harsh environments beyond the standard satin chrome finish.
The lock has been saltwater tested to 1,000 hours and is guaranteed to resist corrosion for up to 1 year. It operates on a single PIN code selected from over 8,000 possible combinations and includes a Silca YA5 6-pin mechanical key override cylinder. No batteries or mains power are required at any point. The lock is confirmed suitable for external use on timber and composite doors 35–54mm thick.
Note that this model does not include the EasiCode Pro on-door code change system. Code changes follow the standard Borg procedure, which requires removal of the internal knob assembly to access the coding mechanism.
Usually same day if ordered before 11am AEST (excluding weekends and Qld public holidays)
Suited to external and coastal doors, marine environments, and any installation where salt air corrosion resistance is required.
For heavy-duty requirements, consider the Lockwood DX, Borg 7701, or Carbine CDL7000 Series.
The BL2701MGPRO is part of Borg’s Marine Grade Pro series, developed specifically for marine applications. 316 grade stainless steel internal components, stainless steel latch, and matt black Marine Pro finish combine to provide protection against salt water and coastal corrosion. Confirmed suitable for external use.
The Marine Pro series has undergone 1,000 hours of saltwater testing to verify the coding chamber and internal components resist salt water corrosion. Guaranteed to resist corrosion for up to 1 year from installation.
Supplied with a Silca YA5 6-pin key override cylinder and 2 keys. Provides emergency mechanical backup entry if the code is forgotten or the keypad requires service.
Installing on a narrow aluminium gate frame?
Planning to mount this lock on an external gate with a 50mm × 50mm (or larger) aluminium frame?
Worried if the standard 60mm latch included in the box will fit?
You’re right — it won’t.
To get this lock working properly on gate frames, you’ll need the correct extended latch.
View Compatible Gate Latch (Left & Right Hand Options)Save yourself the headache — add it to your cart now and avoid delays on install.
Key Features
- Fully mechanical operation — no batteries, no electronics, and no mains power required.
- Marine Grade Pro series — developed specifically for marine, coastal, and external applications.
- 316 grade stainless steel internal components throughout for high corrosion resistance.
- 60mm anti-thrust stainless steel tubular latch — fully stainless for marine environments.
- Matt black Marine Pro grade finish — additional coating protection for harsh environments; available in black only.
- Saltwater tested to 1,000 hours; corrosion resistance guaranteed for up to 1 year.
- Over 8,000 unique PIN code combinations — single active code at any time.
- Silca YA5 6-pin mechanical key override cylinder and 2 keys included as standard.
- Anti-thrust deadlocking latch — automatically deadlocks when the door closes; resists forced latch retraction.
- Fixed 60mm backset; 12mm latch bolt projection.
- Inside handle free-turn knob — allows immediate egress without entering a code from the inside.
- Removable holdback function — inside handle can be held open for free passage; removable when not required.
- Fully reversible — suits left-hand and right-hand door installations.
- Confirmed suitable for external use on timber and composite doors.
- Suits doors 35–54mm thick.
- Code change uses standard Borg procedure — inside assembly removal required; EasiCode Pro on-door code change is not available on this model.
What’s in the Box
- 1 x BL2701MGPRO mechanical digital keypad assembly with key override cylinder (external)
- 1 x inside knob assembly with holdback paddle handle
- 1 x Silca YA5 6-pin key override cylinder
- 2 x keys for key override cylinder
- 1 x 60mm anti-thrust stainless steel tubular latch assembly
- 1 x strike plate
- 1 x set of fixings (includes 80mm and 100mm flat bladed spindles)
- 1 x installation instructions
Suitable Uses
- External doors on coastal and waterfront properties exposed to salt air
- Marine vessels, boat sheds, marina facilities, and waterfront outbuildings
- Gate installations on coastal properties (see gate latch note above for aluminium frame installs)
- Pool area gates and cabanas in salt-chlorinated pool environments
- Caravan parks and beach holiday accommodation with external door access control
- Any external installation where standard satin chrome hardware would corrode prematurely
BL2701MGPRO vs BL2701SCECP – Choosing Between Models
Full Specifications
Frequently Asked Questions
Does the BL2701MGPRO have EasiCode Pro on-door code changing?
No. The Marine Pro series uses the standard Borg code change procedure, which requires the inside knob assembly to be removed to access and reset the coding mechanism. EasiCode Pro on-door code change is not available on this model. If on-door code change is required alongside key override, the BL2701SCECP (satin chrome, internal use only) includes EasiCode Pro.
What makes the Marine Pro series more corrosion resistant than a standard Borg lock?
Three things: 316 grade stainless steel internal components (higher corrosion resistance than standard steel), a stainless steel anti-thrust latch, and Borg’s matt black Marine Pro grade external finish which provides additional protective coating. The complete assembly has been saltwater tested for 1,000 hours and is guaranteed to resist corrosion for up to 1 year. Standard Borg satin chrome models are not rated for external or coastal use.
Can this lock be installed on an aluminium gate frame?
The lock can be installed on a gate, but the standard 60mm latch included in the box will not fit through a standard 50mm × 50mm aluminium gate frame. A compatible extended gate latch is required. See the compatible gate latch options above before ordering.
Does this lock need batteries or mains power to operate?
No. The BL2701MGPRO is a fully mechanical digital lock. All internal mechanisms are driven by the physical action of the keypad buttons. No electricity, batteries, or wiring are involved at any point. For an overview of battery-free Borg locks, see Chapter 10 – Brand Profiles in the Smart Lock Buyer’s Guide.
The corrosion guarantee is 1 year — what happens after that?
The 1-year corrosion resistance guarantee covers the period from installation, and is supported by the 1,000-hour saltwater test result. Beyond the guarantee period, the 316 stainless steel internals will continue to provide better corrosion resistance than standard components in coastal environments, but ongoing exposure to salt spray may cause surface degradation of the finish over time. Regular cleaning with fresh water after salt spray exposure will extend the lock’s service life. The Borg warranty covers manufacturing defects for 12 months from the date of sale.
Additional Information
In active marine environments — boat sheds, marina access doors, waterfront gates — rinse the lock with fresh water periodically to remove salt deposits from the external surfaces and keypad buttons. Pay particular attention to the key override cylinder entry point, which can accumulate salt residue. Applying a small amount of graphite lubricant to the cylinder barrel annually helps maintain smooth key operation. The coding mechanism itself is saltwater tested and does not require lubrication. Avoid applying oil-based lubricants to the keypad buttons as these can attract salt and grit.
Unlike the EasiCode Pro models, the BL2701MGPRO requires the inside knob assembly to be partially disassembled to change the access code. The process involves removing the inside handle, accessing the code discs, setting the new combination, and reassembling. Full instructions are included in the product documentation. If regular code changes are expected — for example, at each change of occupancy — consider whether the EasiCode Pro models (BL2701SCECP for internal use) better suit the installation. See our guide on how long digital door locks last for context on what to expect from mechanical digital locks in coastal environments.
The Silca YA5 6-pin cylinder supplied with the BL2701MGPRO is the same profile as used in the standard BL2701SCECP. Keys can be duplicated at most locksmith workshops. If a master keyed or restricted key profile is required for site integration, confirm YA5-compatible cylinder availability with your locksmith. Note that the marine grade finish on the keypad and knob will not extend to a replacement cylinder — confirm that any replacement cylinder supplied by your locksmith has adequate corrosion resistance for the installation environment.
The BL2701MGPRO keypad provides over 8,000 unique combinations. A single active code is stored at any time. On a Borg mechanical keypad, the order of button presses does not matter — only the combination of buttons pressed counts. Avoid predictable combinations (single row of buttons, obvious number sequences) and change the code if it is suspected to have been observed or compromised.
Borg Locks are warranted against defects in materials and workmanship for 12 months from the date of sale. The warranty does not cover damage resulting from misuse, vandalism, or improper installation. Locks must not be dismantled; dismantling the lock voids the warranty. Warranty claims for products purchased through Terry’s Gold Coast Hardware are managed by Terry’s — contact the team directly to initiate a claim. This warranty operates alongside and does not limit your rights under the Australian Consumer Law.
Borg Lock Servicing Guide
What’s in the Box – BL2701MGPRO
- 1 x BL2701MGPRO mechanical digital keypad assembly with key override cylinder (external)
- 1 x inside knob assembly with holdback paddle handle
- 1 x Silca YA5 6-pin key override cylinder
- 2 x keys for key override cylinder
- 1 x 60mm anti-thrust stainless steel tubular latch assembly
- 1 x strike plate
- 1 x set of fixings (includes 80mm and 100mm flat bladed spindles)
- 1 x installation instructions
Borg Lock Servicing Guide

Borg Locks Warranty – Australia
What is Covered
- 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 is Not Covered
- 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 a Warranty Claim Works
Warranty claims for Borg products in Australia are processed through LSC, the authorised Australian importer and distributor for Borg Locks. If the returned item is found by LSC to be defective, it will be repaired or replaced. Products must be returned to the LSC office with freight charges prepaid within the warranty period. A detailed assessment report is provided to the customer after examination.
Contact Terry’s Locksmiths first — 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.
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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