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Lockwood Mortice Lock 23mm Backset - Satin Stainless

Lockwood Mortice Lock 23mm Backset - Satin Stainless

Lockwood

MSRP: $231.96
$182.69
(You save $49.27 )
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SKU:
STK 3782SS
UPC:
9340116014654
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Lockwood 3782SS — Universal Primary Lock 23 mm Backset Satin Stainless

The Lockwood 3782SS is a Selector® 3780 Series universal primary mortice lock with a 23 mm short backset, finished in Satin Stainless Steel (SS). Designed for narrow stile aluminium doors and other space-restricted applications, this lock offers secure deadlatching, in-door function configuration, and compatibility with Lockwood’s extensive range of furniture and 570 oval cylinders. Built for commercial performance, it is suitable for high-traffic installations in offices, schools, healthcare and public buildings.

Delivery truck icon Estimated Warehouse Dispatch: 2 Days

Key features icon Key Features

  • 23 mm backset short mortice lock designed for narrow stile doors.
  • Satin Stainless Steel faceplate for a durable architectural finish.
  • Deadlatching bolt with auxiliary latch for secure operation.
  • In-door configuration: function settings adjustable under the faceplate.
  • Compatible with Lockwood 570 oval cylinders, restricted and master key systems.
  • High strength zinc alloy body with stainless steel chassis for heavy-duty use.

Fire rating icon Fire Rated

  • Successfully fire tested up to 4 hours on compliant door assemblies (AS 1905.1:2005).

Specifications icon Specifications

  • Item Code: 3782SS
  • Function: Universal primary mortice lock (short backset).
  • Backset: 23 mm.
  • Door Thickness: 32–50 mm standard; kits available for thicker doors.
  • Bolt: 15 mm stainless steel latch with auxiliary deadlatch.
  • Faceplate: Satin Stainless Steel (radius end).
  • Handing: Reversible without case disassembly.
  • Case: Zinc alloy body with stainless steel chassis.
  • Compliance: AS4145.2 (Durability D8, Security S7); AS1905.1 (Fire Doors).

Contents icon What's In The Box

  • 1 × Lockwood 3782SS mortice lock body (23 mm backset)
  • 1 × Satin Stainless Steel faceplate
  • 1 × Satin Stainless Steel strike plate
  • Fixing screws
  • Installation instructions

Suitable uses icon Suitable Uses

  • Narrow stile aluminium doors where space is limited.
  • Commercial buildings requiring short backset mortice locks.
  • High-traffic doors in schools, hospitals, retail, and institutional facilities.
  • Fire-rated installations needing compliant mortice hardware.

Product code list icon Selector® 3782 Short Backset Escape Locks — Item Code Family (Mechanical Variants)

Item Code Backset Function Description (Inside = always free egress)
3782 / 4782 / 5782 / 6782 23 / 25.4 / 30 / 38 mm Escape Lock (Primary) Base mortice escape lock body. Outside handle rigid; inside handle always operates latch.
3782-- 23–38 mm Escape Lock Outside handle rigid (unlocked only when configured); inside handle always free.
3782V 23–38 mm Anti-vandal Escape Key outside locks/unlocks outside handle; bolt retracts after unlocking; inside always free.
3782VT 23–38 mm Anti-vandal + Turn Cylinder outside; turn inside locks/unlocks outside handle; inside always free.
3782X 23–38 mm Key Entry Escape Outside opened by key at all times (handle rigid); inside always free.
3782XT 23–38 mm Key Entry + Turn Outside by key (handle rigid when locked); inside free; turn inside locks/unlocks outside handle.
3782-V 23–38 mm Escape + Internal Cylinder Key inside locks/unlocks outside handle; inside always free.
3782-T 23–38 mm Escape + Turn Turn inside locks/unlocks outside handle; inside always free.
3782XV 23–38 mm Key Entry + Internal Cylinder Double cylinder; outside by key at all times; inside always free. Key inside can also control outside handle.
3782-TA 23–38 mm Anti-lockout + Turn Anti-lockout selection; turn inside locks/unlocks outside handle; inside always free.
3782VTA 23–38 mm Anti-lockout Anti-vandal + Turn Anti-lockout; cylinder outside locks/unlocks; turn inside; inside always free.

Accessories icon Selector® 3782 Short Backset Escape Locks — Accessories & Spare Parts

Item Code Category Description / Notes
3782-FINKITCP / PB / PC Finish Kit Alternative finish kit (strike + faceplate + faceplate screws). Not suitable for 25.4 mm backset 4782.
3782-TFKITSS / CP / PB Timber Fix Kit Converts 3780 short-backset lock for timber doors. Not suitable with 25.4 mm backset 4782.
3782-2100SS Electric Strike Plate Faceplate to suit ES2100 monitored strike (door position monitoring compatible).
3782TF-2100SS Electric Strike Plate ES2100 faceplate when used with Timber Fix kit. Can be used directly with a 3782SS primary lock.
3782-STK32XX / 3782-STK74XX* Strike (Lip) Standard (32 mm) and long lip (74 mm) strikes. *STK74 only supplied in SS finish.
3782-FSTK32SS / 3782-FSTK64SS Fabricator Strike Surface-mounted “fabricator” D-shaped strikes (32 mm / 64 mm lip).
3782-RFSTKCP / 3782-RFSTKSC Retrofit Strike Kit Retrofit kits for legacy installations (e.g., 5900/595/Astra replacement).
5782-RK##SS / CP / PB Rebate Kit Rebate kits for rebated timber doors (minimum backset of 30 mm). Handing: CW / ACW.
3782-SECKIT Security Screws Faceplate screw kit with tamper-resistant TR20 Torx heads (5 pcs).
SP3700/X7CAM Cam X7 latching cam (retracts latch; part of key/turn functions).
SP3700/VCAM Cam V cam (locks/unlocks locking bar; retracts latch after unlocking).
3770M1-ADAPTOR Adaptor Latching / turn adaptor for 3780 short-backset platform (MkI adaptor required for 3780).
3772-ADAPTOR Turn Adaptor Turn adaptor used on functions requiring internal turn/through-fix (per function chart).
SP3570-5018 / -5228 / -5238 / -5258 Extended Spindles Spindles for thicker doors (approx. 32–200 mm door thickness coverage by model).
3782-DXKITSC DX Digital Kit Mechanical digital keypad conversion (codepad, spindle, plate, screws, adaptor).
3782-DXKOKITSC DX Digital + Key Override DX codepad with lower cylinder key override; includes required plates and spindle.
3787-KIT570E Dual Entry Kit Lower cylinder mounting plate, spindle cam & screws (for 3787 dual entry configuration).

Warranty icon Warranty

  • Lockwood 25 Year Mechanical Warranty covers mechanical components and workmanship under normal use and correct installation.
  • Electronic and electrical components are covered for 3 years (PADDE & electric mortice locks 5 years, batteries excluded).
  • Keys are covered for 12 months.
  • Finish warranty varies by finish type and exposure — e.g. Everbrass 25 years; Stainless/Chrome/Anodised 10 years; PVD/VIVID 10 years; Symmetry range 5 years; decorative finishes such as bronze, antique and powdercoat 2 years (natural brass ageing excluded).
  • Warranty excludes misuse, improper installation, modification, or failure to maintain as specified.

PDF icon Download PDF Resources

PDF icon Lockwood Selector 3700 Series Mortice Locks Catalogue
PDF icon Lockwood Selector 3700 Series Mortice Locks Service Manual
PDF icon Lockwood 25 Year Mechanical Warranty (Conditions Apply)
Lockwood 3782 Short Backset Series
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