Lockwood 3772H100SS Holdback Escape Lock Adaptor Kit - Stainless Steel
The Lockwood 3772H100SS is a holdback adaptor kit for the ASSA ABLOY-owned Lockwood Selector 3772 MkII Escape Lock range. Manufactured in stainless steel, it adds the holdback function to a 3772 case, allowing the latch bolt to be held retracted inside the lock so the door can free-swing while it is meant to stay unlocked.
Holdback is used where a commercial door needs to stay latch-free during trading or operating hours and be re-secured afterwards. The kit installs in the field to an existing 3772 lock body - there is no need to replace the primary lock. It is a mechanical accessory only: no lock case, cylinder or lever furniture is included.
Important: holdback must not be used on fire doors. Fitting this kit removes the door's fire-rated latching function, so the 3772H100SS is not suitable for fire-rated doorsets.
Estimated Warehouse Dispatch: 3 business days
Key Features
- Adds holdback to the Selector 3772 MkII escape lock - holds the latch bolt retracted inside the lock case.
- Field installable to an existing 3772 lock body - no need to replace the primary lock.
- Stainless steel construction for strength, durability and corrosion resistance.
- Enables the 3772 holdback function configurations (3772V-H, 3772XVH, 3772VTH).
- Not for fire doors - holdback removes fire-rated latching and must not be fitted to fire-rated doorsets.
What's in the Box
- 1 x Holdback adaptor (stainless steel)
- Fixing screw(s)
- Installation instructions
Suitable Uses
- Commercial doors that need the latch held back during trading or operating hours.
- Offices, retail and institutional entries that stay open during the day and are secured after hours.
- Retrofitting holdback to an existing non-fire Selector 3772 escape lock.
- Not for fire doors or any fire-rated doorset.
Available Finish Options
Stainless Steel
(This Product)
STK 3772H100SS
Supplied in stainless steel. Finish selection does not affect functionality, compliance or performance.
Compatible Locks - Selector 3772 MkII Range
This holdback adaptor fits the Selector 3772 MkII universal primary escape lock, in any of its build configurations. Add it to whichever 3772 case suits your door and furniture (holdback must not be used on fire doors).
| Lock | Build Configuration |
|---|---|
| 3772SS | Standard build - sprung hubs with hub disc, square-end faceplate. |
| 3772NSFSS | Non-Sprung Furniture (hub disc retained). |
| 3772NSF8SS | Non-Sprung Furniture with an 8 mm hub. |
| 3772NOHDSS | No Hub Disc - split (independent) follower, sprung hubs. |
| 3772NSFNOHDSS | Non-Sprung Furniture and No Hub Disc combined. |
| 3772TSS | Supplied with a locking (turn) adaptor. |
| 3772RSS | Full radius-end faceplate. |
| 3772SS/50 | Supplied with a 50 mm door kit for thicker doors. |
| 3772AFSS | Aluminium door fixing build. |
Related Selector / Synergy primary locks: 3782TSS narrow-stile 23 mm backset · 3770TSS MkII Mortice Nightlatch · Synergy 3572SC universal primary.
Selector 3772 Escape Functions (Reference)
The 3772 case is configured into the functions below on site. This holdback adaptor enables the holdback (H) function configurations, highlighted in the last three rows. Holdback (H) configurations are not fire door rated.
| Function Code | Function | Description |
|---|---|---|
| 3772 / 4772 / 5772 | Escape Lock (Primary) | Base mortice escape lock, 60 / 89 / 127 mm backset. Inside handle always free, outside handle rigid. |
| 3772V | Anti-vandal Escape Lock | Outside opened by key when unlocked; inside always free. |
| 3772VT | Anti-vandal Escape Lock + Turn | Cylinder outside, turn inside; inside always free. |
| 3772X | Key Entry Escape Lock | Outside opened by key at all times; inside handle always free. |
| 3772XT | Key Entry Escape Lock + Turn | Outside opened by key; inside opened by turn or handle. |
| 3772-V | Escape Lock with Internal Cylinder | Inside handle always free; key inside locks / unlocks outside handle. |
| 3772-T | Escape Lock with Turn | Inside handle always free; turnknob locks / unlocks outside handle. |
| 3772VV | Anti-vandal Escape Lock with Internal Cylinder | Double cylinder; outside key locks / unlocks handle; inside key also operates bolt. |
| 3772XV | Key Entry Escape Lock with Internal Cylinder | Double cylinder; outside key entry at all times; inside always free. |
| 3772-TA | Anti-lockout Escape Lock + Turn | Turn inside; outside handle operable when unlocked. Prevents accidental lockout. |
| 3772VTA | Anti-lockout, Anti-vandal Escape Lock + Turn | Cylinder outside, turn inside; anti-vandal and anti-lockout functions combined. |
| 3772V-H | Holdback Anti-vandal Escape Lock | Latch can be held in; outside key locks / unlocks; inside always free. Not fire door rated. (Enabled by this kit.) |
| 3772XVH | Holdback Key Entry Escape Lock with Internal Cylinder | Double cylinder; holdback function; inside always free. Not fire door rated. (Enabled by this kit.) |
| 3772VTH | Holdback Anti-vandal Escape Lock + Turn | Cylinder outside, turn inside; holdback enabled. Not fire door rated. (Enabled by this kit.) |
Selector 3772 - Related Adaptors, Kits & Spares
| Item / Range | Description |
|---|---|
| 3772-ADAPTOR | 3700 Series locking / turn adaptor assembly (singles) - alternative adaptor for turn functions. |
| 3770M2-ADAPTOR | MkII latching / turn adaptor assembly (box of 10). Not backwards compatible with MkI. |
| 3772PEDSS | Panic exit device (PED) faceplate kit for the Selector 3772 mortice lock. |
| 3772-DXKITSC | DX digital conversion kit - codepad, mounting plate, spindle, screws and latching adaptor. |
| 3772-DXKOKITSC | DX digital conversion with key override - as above, plus lower cylinder assembly. |
| 3777-KIT | Dual entry conversion kit - converts a 3772 to two cylinders outside. |
| 3772-FINKIT (CP / PB / PC) | Alternative finish kit - strike, faceplate & screws. Chrome Plate, Polished Brass or Powdercoat. |
| 3772-RK Rebate Kit | Fire-rated rebate kit for 13 mm rebated door pairs. 32 mm or 46 mm lip; SS, CP, PB. |
| 3772-AFKIT (SS / CP / PC) | Aluminium door fixing kit - 156 x 25 mm faceplate. |
| 3772-STK Lipped Strikes | Short / extended lipped strikes, 25-60 mm lip lengths; SS, CP, PB (60 mm SS only). |
| 3772-STK32SS | 32 mm lipped strike, Satin Stainless Steel, box of 10. |
| 3772-SECKIT | Security faceplate screw kit - 2 x tamper-resistant TR20 torx-drive screws. |
| 3772-2100SS / 3772AF-2100SS | ES2100 electric strike faceplates (timber and aluminium), Satin Stainless Steel. |
| SP3700/X7CAM / SP3700/VCAM | X7 and V cylinder cams - set the lock function with the 570-series cylinder. |
| SP3570-5228 / -5238 / -5258 | Extension spindles for thicker doors (50-75 mm, 100 mm, 200 mm door builds). |
| SP3770-836SS | Securafix retrofit faceplate, Satin Stainless Steel. |
Full Specifications
- Item Code: STK 3772H100SS
- Type: Holdback adaptor kit (accessory) for the Selector 3772 MkII escape lock.
- Function: Holdback - retains the latch bolt inside the lock case.
- Enables functions: 3772V-H, 3772XVH, 3772VTH.
- Material: Stainless steel.
- Installation: Field installable to an existing 3772 lock body; no lock replacement required.
- Compatibility: Selector 3772 MkII escape lock range (all build configurations).
- Fire rating: Not rated - holdback must not be used on fire doors.
- Included lock / cylinder: None - adaptor kit only.
Dimensions - Host Selector 3772 Lock
Dimensional drawings for the Selector 3772 mortice lock this adaptor fits (the adaptor itself installs inside the existing lock case).
| Part Number | Dimension A (backset) | Dimension B |
|---|---|---|
| 3772 | 60 mm | 88 mm |
| 4772 | 89 mm | 117 mm |
| 5772 | 127 mm | 155 mm |
Frequently Asked Questions
Holdback keeps the latch bolt retracted inside the lock case, so the door is not latched and can free-swing. It is used to hold a door "open" (unlatched) during trading hours, then released so the door latches and secures again afterwards.
No. Holdback removes the self-latching a fire door relies on, so fitting this kit is not permitted on any fire-rated doorset. If your door is fire rated, keep a non-holdback 3772 configuration. See AS 1905.1 (Buyers Guide Chapter 11).
The Selector 3772 MkII universal primary escape lock, in any build configuration - standard, non-sprung, no-hub-disc, radius-end, locking-adaptor, 50 mm door kit or aluminium fixing. See Compatible Locks above.
No. The kit installs to an existing 3772 lock body in the field, so there is no need to replace the primary lock. A locksmith can add or remove holdback without swapping the case.
No. This is an adaptor kit only - the 3772 lock case, 570-series cylinder and lever furniture are ordered separately.
Additional Information
When holdback is the right choice. Holdback suits doors that must stay unlatched during set hours - a shopfront, an office suite entry, or an internal corridor door during the working day - and be secured again after hours. It is a mechanical convenience, not a security feature: while held back, the door is not latched.
The fire-door boundary. This is the one place holdback is never acceptable. A fire door has to latch on its own to hold its rating, so holdback configurations (3772V-H / 3772XVH / 3772VTH) sit outside the fire-tested scope of the 3772 range. If the door is fire rated, choose a non-holdback build. For the standards behind this, see Buyers Guide Chapter 05 - Fire Door hardware and the apartment fire-door compliance guide.
Retrofit-friendly. Because the kit fits an existing 3772 case, you can add holdback to an installed lock without a full replacement. If you later want to change the door to keyless entry instead, the same case accepts the 3772-DXKITSC DX digital conversion kit. For a plain-English refresher on the mortice format, see the F05 vs F54 mortice locks guide.
Non-handed hosts. The Selector 3772 case is non-handed and field reversible, so the holdback function works regardless of door hand - see door handing and field-reversibility.
Brand and installation. Lockwood is an ASSA ABLOY brand and Australia's most widely specified commercial lock range - see Buyers Guide Chapter 10 - Brand Profiles. Fitting or removing holdback is best done by a locksmith; Terry's offers a supply and installation service across the Gold Coast.
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.
What's in the Box - Lockwood 3772H100SS
- 1 x Holdback adaptor (stainless steel)
- Fixing screw(s)
- Installation instructions
Lockwood Selector 3772 - Dimensions
Lockwood Selector 3700 Series - Product Brochure
Lockwood Warranty Overview
Lockwood branded products are covered by manufacturer warranties issued by ASSA ABLOY Australia Pty Ltd. Warranty periods vary depending on product type, mechanical components, electrical elements, and finish category.
This overview summarises the structure of Lockwood warranty coverage. Full terms, exclusions and claim procedures are set out in the official Lockwood Warranty document.
Warranty Periods Summary
Finish Coverage Guide
- Everbrass finishes: up to 25 years against corrosion, tarnishing and discolouration.
- Stainless steel, polished stainless steel, chrome plating and anodised finishes: typically up to 10 years.
- Decorative finishes including Antique Copper, Architectural Bronze, Oil Rubbed Bronze, Aged Brass, Polished Brass, Satin Brass and related variants: typically up to 2 years against corrosion.
- Unlacquered brass finishes will naturally age and change appearance over time. This is not considered a defect.
- Tea staining of stainless steel is not covered where cleaning and maintenance have not been followed.
What the Warranty Covers
- Defects in material and workmanship during the applicable warranty period.
- Assessment by ASSA ABLOY to determine repair, replacement with the same or closest equivalent product, or refund of purchase price.
Common Exclusions
- Normal wear and tear.
- Misuse, abuse, accidental damage or use outside published specifications.
- Improper maintenance or failure to follow care instructions.
- Unauthorised modification, repair or use of non-genuine parts.
- Exposure to corrosive environments including coastal air, salt spray, chemicals or pollution.
- Removal, refitment or associated labour charges.
- Products not originally sold in Australia through authorised channels.
Warranty Claim Process
- Retain proof of original purchase.
- Return the product through the original place of purchase where applicable.
- If claiming directly, obtain a case number before returning goods.
- Products must be securely packed and clearly identified.
- Warranty assessment determines repair, replacement or refund.
Australian Consumer Law
Lockwood warranties operate in addition to rights available under the Australian Consumer Law. Goods come with guarantees that cannot be excluded. Customers may be entitled to a replacement or refund for a major failure and compensation for reasonably foreseeable loss or damage.
Where a product fails to meet acceptable quality standards and the failure does not amount to a major failure, the customer is entitled to repair or replacement.
