Borg BL3150 Mechanical Digital Gate Lock – Back-to-Back Keypads – Marine Grade – Black
The Borg BL3150GATE is a fully mechanical marine grade digital gate lock with keypads on both sides of the gate – the back-to-back (BTB) configuration. The correct PIN is required to operate the gate from either side. Both keypads are preset to the same factory code but can be independently recoded to different combinations if required.
The lock uses a forend fixing system, clamping onto the gate post with telescopic screws – no mortice cutting required. It suits gate profiles from 30mm to 60mm square on standard fixings. The lock is fully mechanical, requires no batteries, and features an anti-climb housing. Code change uses the traditional Borg tumbler system (lock removal required). For on-gate code change, see the BL3430MGPROECP.
Usually same day if ordered before 11am AEST (excluding weekends and Qld public holidays)
These locks use a forend fixing system that clamps directly onto the gate post — no mortice cutting or door-edge drilling required. Designed for square aluminium or steel gate posts from 30–60mm. For profiles wider than 60mm, an optional XL latchbolt extension is available separately.
Marine grade quality keypads tested to 1,000 hours of salt spray exposure. Suitable for coastal, beachside, and outdoor gate installations.
This model uses a tumbler-based code system. To change the PIN, the lock must be removed from the gate. The keypad cover plate is removed and red coded / blue uncoded tumblers are rearranged using the supplied tweezers. For on-gate code change, see the BL3400MGPROECP (single-sided) or BL3430MGPROECP (back-to-back).
Both sides of the gate have a full keypad. The same PIN code operates both keypads. Entering the code is required to enter and exit — there is no free egress from inside.
The inside keypad requires the correct PIN before the lever operates. Confirm this suits your application and complies with any applicable fire egress or building regulations before purchasing.
Entirely mechanical. No power source, no wiring, and no battery maintenance at any point.
Accepts one active PIN code at a time.
Key Features
- Back-to-back keypads – code required to enter and exit the gate.
- Forend fixing system – clamps to gate post, no mortice required.
- Anti-climb housing design.
- Clutching levers both sides – free-turning until correct code entered.
- Marine grade quality keypads, 1,000 hour salt spray tested.
- Fully mechanical – no batteries, no wiring.
- Over 8,000 code combinations; 14-button keypads (both sides).
- Both keypads pre-set to the same factory code; each can be independently recoded.
- Spring loaded adjustable latch bolt from 65mm to 80mm.
- Telescopic fixing screws – suits gate posts from 30mm to 60mm square.
- XL latchbolt available separately for gate posts up to 120mm.
- Reversible on site for left or right hand gate swing.
What's in the Box
- Borg BL3150GATE outside keypad unit with anti-climb housing
- Borg BL3150GATE inside keypad unit
- Adjustable spring-loaded latch bolt (65–80mm projection)
- Telescopic fixing screws (suits 30–60mm gate posts)
- Allen key (for latch projection adjustment)
- Tweezers (for tumbler code change when lock is removed)
- Fixings and installation hardware
Suitable Uses
- Plant rooms, utility enclosures, and secure storage areas requiring controlled access from both gate sides
- Pool gates and pedestrian gates where access must be controlled in both entry and exit directions
- External gates in coastal and marine environments where both-sided code control is the requirement
- Applications where different codes on each side are needed for different user groups
Borg BL3100 / BL3400 / BL3430 Gate Lock Series – Full Product Family
All models are purpose-built gate locks for metal box-section gate frames. All are marine grade, salt-water tested, fully mechanical (no batteries), and finished in black.
MG = standard marine grade. MG Pro = Marine Grade Pro (316 SS internals, MG Pro 2 coating, 1,000hr salt spray). ECP = Easicode Pro on-gate code change. DKO = double key override with deadbolt/code lockout function. Euro cylinder not supplied on DKO and GATEK models.
Full Specifications
Dimensions
Frequently Asked Questions
How does the forend fixing system work?
The lock body sits on the face of the gate frame and clamps onto the gate post using telescopic fixing screws supplied. No drilling through the gate edge or mortice pocket is required. The latchbolt projects from the lock body and engages a strike on the gate post or adjacent frame. The latch projection is adjustable from 65mm to 80mm to suit different gate frame widths. For gate posts wider than 60mm, an optional XL latchbolt extension is available separately.
How do I change the PIN code?
The lock must be removed from the gate. Remove the 4 red screws, carefully lift the cover plate (springs attached), hold the C tumbler depressed, then use the supplied tweezers to reposition the red (coded) and blue (uncoded) tumblers. All square cut-outs must face outward. Test the new code before reinstalling. Codes are non-sequential — buttons can be pressed in any order. Spare tumblers allow code length to be adjusted from 3 to 7 digits.
My gate post is wider than 60mm — what do I do?
An optional XL latchbolt extension is available separately, extending the maximum gate post width to 120mm. Contact us or search "Borg XL latchbolt" to find the correct accessory for your gate profile. Always confirm the correct gate post width before ordering.
Is this lock suitable for a pool gate?
The lock's spring-loaded latch is self-latching on gate close, which aligns with pool safety self-latching requirements. However, confirm all pool gate safety compliance requirements with a licensed pool safety inspector before installation, as compliance encompasses more than just the lock (gate height, clearances, overall system). For the Queensland Pool Safety Standard specifically, confirm with your local inspector.
What is the difference between BL3150GATE and BL3430GATE?
Both are back-to-back marine grade gate locks with tumbler code change. The BL3430 series uses a larger, more robust forend lockcase with a heavier anti-climb housing, suited to heavier-duty and higher-security gate applications. The BL3150 is a compact BTB model suited to lighter-duty residential and light commercial applications. Both use the same forend fixing approach.
Additional Information
Both keypad tumbler codes can be set on the bench before installation. Set and verify both codes before mounting. This avoids removing a fitted keypad for the first code change.
Both sides require code entry on the BL3150GATE. Confirm this complies with emergency egress requirements for your specific application before specifying.
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.
What's In The Box – Borg BL3150GATE
- Borg BL3150GATE outside keypad unit with anti-climb housing
- Borg BL3150GATE inside keypad unit
- Adjustable spring-loaded latch bolt (65–80mm projection)
- Telescopic fixing screws (suits 30–60mm gate posts)
- Allen key (for latch projection adjustment)
- Tweezers (for tumbler code change when lock is removed)
- Fixings and installation hardware
Borg BL3400 / BL3100 Series – Dimensions
All BL3100 and BL3400 series locks use the same forend fixing system and adjustable latchbolt mechanism. Latchbolt projection adjustable 65–80mm. XL latchbolt available separately for gate posts wider than 60mm (up to 120mm).
Borg BL3400 / BL3100 Series – Product Brochure
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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