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By Lockwood

3540 Series Short Backset Hardware – Deadlocks, Escape Turns, Levers & Kits

$9.39 - $441.79
$44.19
$44.19
SKU: SP591-84NAT
$44.19
$44.19

The 3540 Series Short Backset Hardware provides high-performance, versatile locking solutions for narrow stile hinged and sliding doors. Featuring swing-bolt deadlocks with positive-action deadbolts, these locks can be operated by key, turn knob, escape turn, or handle, offering flexibility and security for industrial, commercial, institutional, retail, and residential applications.

Engineered for durability and smooth operation, the 3540 Series is built from premium materials, ensuring the solid feel and long-term reliability expected from Lockwood. Compatible with Strike Conversion Kits, Furniture Kits, and Accessories, this range allows for customized door hardware solutions.

Key Features

  • Short backset deadlocks for narrow stile doors

  • Swing-bolt and positive-action deadbolt mechanism

  • Multiple operation types: cylinder, turn, lever, or escape turn

  • Ideal for sliding and hinged doors

  • Heavy-duty construction for commercial, institutional, and industrial use

  • Compatible with 3540 Furniture Kits, Strike Conversion Kits, and Accessories

Variants

Flat Strikes & Strike Cover Plates

  • Flat Strike – 3541 Strike Cover Plate – SP591-84NAT

  • Cover Plate – 1-7/16 Radius End – PK=10 – SP3540-174PPC

  • Cover Plate – 7/8 Metal/Wood – SP3540-35SC

  • Cover Plate – 7/8 Radius End – PK=10 – SP3540-74NAT

  • Cover Plate Metal – 1-7/16 – SP3540-135PC

  • Cover Plate Wood – 1-7/16 – SP3540-136AG

  • Strike Conversion Kit – 3541 to 3641 – 3540-MTSKITPC

Handle / Lever Assemblies

  • Handle Assembly – 45° Lever – SP3540-L1PC

  • Lever Handle Assembly – 90° LH – SP3540-L3PPC

  • Lever Handle Assembly – 90° RH – SP3540-L2SC

Accessory Packets / Adaptors

  • Accessory Packet – Latch Strike – PK=10 – SP3540-128

  • Accessory Packet – Suit 3540-L1/T1 – SP3540-123

  • Accessory Packet – Suit 3540-T2/T3 – SP3540-125

  • Accessory Packet – Suit 3540/3560 – SP3540-119

  • Adaptor Assembly – SP3540-858

  • Anti-Lockout Adaptor – SP3540-E

  • Finish Conversion Kit – 3540-AFKITPC

Mortice Deadlocks – With Cylinder

  • Escape Turn LH – 3540-T6PC

  • Escape Turn RH – 3540-T5PPC

  • 90° Lever RH – 3540RL2PC

  • Lever – 3540RL1PC

  • Escape Turn RH – 3540RT5PC

  • Cylinder + Cylinder Turn – 3540RT4PC

Mortice Deadlocks – No Cylinder

  • Turn – 3540RT4PCNCYL

  • Escape Turn Knob – 3540RT1PCNCYL

  • 90° Lever RH – 3540RL2PCNCYL

  • Lever – 3540RL1SCNCYL

  • Escape Turn LH – 3540RT6SCNCYL

  • Escape Turn RH – 3540RT5SCNCYL

  • Cylinder + Cylinder Turn – 3540RT4SC

  • Escape Turn – 3540RT1SC

  • Double Cylinder – 3540RRSC

  • No Cylinder – 3540RRSCNCYL

Mortice Deadlocks – SC / SCNCYL Variants

  • Escape Turn LH – 3540-T6SC

  • Escape Turn RH – 3540-T5SC

  • 90° Lever RH – 3540RL2SCNCYL

  • Turn – 3540RT4SCNCYL

  • Escape Turn Knob – 3540-T1SC

  • Escape Turn Knob – No Cylinder – 3540RT1SCNCYL

  • Lever – 3540RL1SCNCYL

  • Lever – 3540RL1SC

  • Escape Turn LH – 3540RT6SCNCYL

  • Escape Turn RH – 3540RT5SCNCYL

  • Cylinder + Cylinder Turn – 3540RT4SC

  • Escape Turn – 3540RT1SC

Primary Locks

  • 22MM Bolt – 3540PC

  • 22MM Bolt – 3540SC

Sliding Door Locks

  • 45° Lever – 3540-L1SC

  • 90° Lever – 3540KIT80