P.O. Box 2101
Oak Park, Vic 3046
(03) 9306 6760
0421 149 760
Carbine LB3 Single Sided Deadbolt – 20mm Low Profile Key & Turn (LB3)
$59.95 Inc. GST
The Carbine LB3 single sided deadbolt (LB3210 / LB3910) is a slim 20mm low-profile single-cylinder deadbolt with an internal turnsnib engineered to clear tight security screen door gaps.
- 20mm Low-Profile Projection: Slim 20mm exterior cylinder projection prevents interference with hinged security screen doors.
- 6-Pin C4 Cylinder & Turnsnib: Keyed 6-pin C4 exterior cylinder paired with an internal turnsnib for keyless exit.
- Adjustable 60mm–70mm Backset: Fits standard 54mm door holes (or 47mm without adapter ring) on 35mm to 45mm doors.
- Stocked Victorian Warehouse Dispatch: In stock in Victoria for 24-48hr dispatch with free Australia-wide shipping over $149.95 AUD.
🔑 Ordering Multiple Locks? Get Them Keyed Alike:
Have our in-house Victorian locksmiths pin your compatible C4 / LW5 locks to open on one single key (2 matching keys per group). $14.95/lock (1–4) • $12.95/lock (5–9) • $11.45/lock (10–19) • $9.95/lock (20+ bulk).
Add Key Alike Service (SKU: KA) →
Have our in-house Victorian locksmiths pin your compatible C4 / LW5 locks to open on one single key (2 matching keys per group). $14.95/lock (1–4) • $12.95/lock (5–9) • $11.45/lock (10–19) • $9.95/lock (20+ bulk).
Add Key Alike Service (SKU: KA) →
The Carbine LB3 single sided deadbolt (SKU: LB3210 Satin Nickel / LB3910 Matte Black) is a low-profile cylindrical residential deadbolt engineered with a slim 20mm exterior projection and an internal turnsnib. Manufactured by Carbine, this carbine lb3 low profile deadbolt solves the problem of standard bulky deadbolts hitting the handle of an outer security screen door.
Carbine LB3 Single Sided Deadbolt 20mm Low Profile and 6-Pin C4 Keying
Featuring a 60mm diameter rose and a 25mm throw deadbolt with a hardened steel anti-saw insert, this slimline single cylinder deadbolt mounts cleanly on 35mm to 45mm timber doors.
- 20mm Slim Projection: Clears narrow gaps between your main timber entrance door and security screen door.
- 6-Pin C4 Brass Cylinder: Accepts standard 5-pin and 6-pin C4 keys (rekeyable to match existing house locks).
- Available Finishes: Satin Nickel (LB3210) and Matte Black (LB3910).
Stocked Victorian Warehouse Dispatch and Custom Keying
Browse our full range of residential deadbolts or book licensed mobile installation across Metropolitan Melbourne and Regional Victoria via All Secure Locksmiths.
- 24-48hr Victorian Dispatch: Shipped within 24 to 48 hours from our stocked Victorian warehouse with free Australia-wide delivery over $149.95 AUD ($9.95 AUD flat rate under $149.95 AUD) and 30-day returns (Postal Returns: P.O. Box 2101, Oak Park, VIC 3046).
Frequently Asked Questions
Why choose the Carbine LB3 over the LB2 deadbolt?
The LB3 has a slim 20mm exterior projection (to clear tight security screen door clearances) and comes standard with a 6-pin C4 cylinder.
Will the LB3 fit a standard 54mm door hole?
Yes. It includes the adapter ring for standard 54mm cross-bore holes and also fits smaller 47mm holes.
Additional Information & Specifications
| Weight | 0.68 kg |
|---|---|
| Dimensions | 15 × 11 × 8 cm |
| Finish | Matte Black, Satin Nickel |
| Brand | Carbine |
| Lock Type | Low-Profile Single Cylinder & Turn Deadbolt (20mm Projection) |
| Backset | 60mm – 70mm Adjustable (25mm Anti-Saw Bolt Projection) |
| Door Preparation | Fits 47mm or 54mm Cross-Bore Holes (60mm Rose, 35-45mm Doors) |
| Cylinder Profile | 6-Pin C4 Brass Cylinder Outside / Turnsnib Inside |
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