P.O. Box 2101
Oak Park, Vic 3046
(03) 9306 6760
0421 149 760
Carbine LB3 Double Sided Deadbolt – 20mm Low Profile Dual Cylinder (LB3)
$79.95 Inc. GST
The Carbine LB3 double sided deadbolt (LB3211 / LB3911) is a slim 20mm low-profile double-cylinder deadbolt with 6-pin C4 key operation on both sides.
- 20mm Low-Profile Projection: Slim 20mm cylinder projection on both sides clears tight security screen door and shutter gaps.
- Dual 6-Pin C4 Cylinders: Keyed inside and outside to prevent reach-through unlocking through glass panels.
- Adjustable 60mm–70mm Backset: 25mm anti-saw deadbolt fits 47mm or 54mm cross-bore holes 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 double sided deadbolt (SKU: LB3211 Satin Nickel / LB3911 Matte Black) is a low-profile double-cylinder residential deadbolt featuring a slim 20mm projection and dual 6-pin C4 cylinders. Manufactured by Carbine, this carbine lb3 double cylinder deadbolt combines reach-through glass protection with slimline clearance for doors fitted with security screens or plantation shutters.
Carbine LB3 Double Sided Deadbolt 20mm Projection and Dual 6-Pin C4 Security
Engineered with concealed fixing screws and a hardened steel anti-saw bolt insert, this low profile double cylinder deadbolt fits both 47mm and standard 54mm door holes.
- Dual 6-Pin C4 Brass Barrels: Keyed on both sides and easily keyed alike to existing household C4 locks.
- Adjustable 60mm–70mm Backset: Includes adjustable deadbolt latch, strike plate, 54mm adapter ring, and 2x C4 keys.
- Available Finishes: Satin Nickel (LB3211) and Matte Black (LB3911).
Stocked Victorian Warehouse Dispatch and Custom Keying
Explore our complete 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
How far does the Carbine LB3 protrude from the door face?
It projects only 20mm from the door surface, making it ideal where security screen doors or internal blinds sit close to the timber door.
Can both 6-pin C4 cylinders be keyed alike?
Yes. Our Victorian locksmiths can key both cylinders alike to your existing C4 key before dispatch.
Additional Information & Specifications
| Weight | 0.74 kg |
|---|---|
| Dimensions | 15 × 11 × 8 cm |
| Finish | Matte Black, Satin Nickel |
| Brand | Carbine |
| Lock Type | Low-Profile Double Cylinder Deadbolt (20mm Projection, Keyed Both Sides) |
| 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 | Dual 6-Pin C4 Brass Cylinders (Internal & External) |
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