Products · Overlock & lockout
Overlock and lockout hardware for storage units
Hardware for the part of the job nobody puts in a brochure — vacant units, delinquent accounts and units that must not be opened without a manager present. This is the family most suppliers do not carry at all.
Choose your configuration
Four decisions shape this order. Pick what applies and we will confirm the rest with a sample.
- Products
- Overlock plates · lockout brackets · latch protectors · manager locks
The operational hardware around the tenant lock. - Designed for
- Vacant units and delinquent accounts
Prevents access without removing the tenant lock. - Fit
- Must clear the lock body and door track through the full swing
Verified against a sample door, not a drawing. - Keying
- Manager key where applicable
Planned on the same keying schedule as the unit cylinders.
Specification
Category-level parameters. Model references and packing quantities are confirmed in the catalog and in your quotation.
| Product types | Overlock plates · lockout brackets · latch guards / protectors · manager locks |
|---|---|
| Purpose | Blocking access to vacant units and units on delinquent accounts |
| Material | Steel, coated |
| Fit requirement | Must clear the lock body and the door track through the full swing |
| Verification | Checked against a sample door before the production run |
| Keying | Manager-keyed where the model requires a lock |
| MOQ | From 500 pcs |
| Sample | From 5 days |
| Batch production | Around 30 days after spec and artwork confirmation |
| Trade terms | EXW · FOB · CIF · CFR · DDP |
No model references, prices, stock levels or sales figures are published here. Where a parameter depends on the specific model, we confirm it for the model you order rather than describing the whole family.
Fit and compatibility
- Overlock hardware has to work with the tenant lock already on the unit — send us the lock model or a photo.
- The plate must clear the door track through the full swing. This is verified against a sample door, because it is the most common reason an overlock does not work in practice.
- If a manager key operates the overlock, it is planned on the same keying schedule as the unit cylinders so one key covers the routine.
- For roll-up doors, overlock hardware is normally specified together with the latch and hasp.
Fit confirmed by sample, not by drawing. Send a door photo, the cylinder size or the mounting dimensions and we will send a physical sample before you commit to a quantity.
Ordering information
The commercial terms for this family. They are confirmed with the quotation, so a re-order two years from now carries the same conditions rather than a new set.
- MOQ
- From 500 pcs
Heavy customization — a new mold, a special key system, printed blister cards — may require more. The exact figure is confirmed with your quotation. - Samples
- From 5 days
Sent so you can check fit and finish on your own door before committing to a quantity. - Batch production
- Around 30 days after spec and artwork confirmation
Peak periods such as Chinese New Year are flagged when you order. - Delivery terms
- EXW · FOB · CIF · CFR · DDP
More than one term can be quoted so you can compare what the goods cost against what the freight and duties cost. - Payment
- T/T · L/C · Credit card
A first order normally runs on a deposit with the balance against the documents or on shipment. - Documentation
- Spec sheet, inspection record, packing list, pre-shipment photos
Test records are issued per model and per finish, and are available for the model you order.
Tell us the quantity, the door type and the destination country and we will quote the configuration rather than a list price.
Options and customization
What can change without changing the product's identity.
Manager keying
Overlock hardware keyed so a manager key covers every unit on a site, or every site in a group.
Anti-removal design
Plates configured so the overlock cannot be removed while the tenant lock is in place.
Site colour coding
Coating to a reference colour so staff can identify unit status at a glance.
Kitted supply
Overlock plate, fasteners and instructions supplied as one kit for maintenance teams.
Quality and evidence
What you receive before the goods ship, and what stays on file.
SGS
Verified supplier
On-site audit completed October 2025.
ISO 9001
Quality system
Incoming, in-process and final inspection.
FAI
Door clearance
Plate clearance verified on a sample door before the run.
100%
Edge and coating
Coating and edge finish checked on every plate.
Buyer questions
What is the difference between an overlock and a lockout?
Both block access, and both are used for vacant or delinquent units. An overlock is normally a plate or bracket that covers the existing hasp or lock so it cannot be opened. A lockout is the broader practice — the hardware depends on the door and the lock already fitted. Tell us the door and lock type and we will confirm which applies.
Will it work with the locks we already use?
Send the lock model or a photo of a typical unit door. The overlock has to clear the lock body and the door track through the full swing, so we verify it against a sample rather than assuming.
Can the manager key open the overlock too?
Yes. Manager keying is planned together with the unit cylinders, so one key covers the overlock routine across the site. Planning them separately is how a facility ends up with a manager key that opens the units but not the overlocks.
Is overlock hardware available on its own?
Yes, and it is often ordered with the latch and hasp family or as a top-up to an existing installation. Tell us the door type and the lock already in use.
What do we need to measure before choosing an overlock?
The hasp depth and the gap the overlock has to close over, with a photo of the door closed. Those two dimensions decide the fit, and getting them wrong is the usual reason an overlock that looked right in a catalogue fails on site.
Can you supply overlock hardware for a site you did not fit out?
Yes. Send the door type and the locks already in use and we will confirm which overlock closes over them. Matching another supplier's hardware is routine on a site being taken over.
Related families:
Send us your door type and unit count
We will come back with a fit confirmation, a configuration and a price — typically within 4 business hours.