NIWNIW / Trailer Locks
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XL Keyed-Alike Puck Locks for Trailer Door Hasps — Black
Black XL puck locks with a stepped-back rear opening for compatible enclosed-trailer, truck and van door hasps. Choose a 2-, 3- or 4-lock pack; keys match within the purchased pack. Compare every hasp with the rear-opening diagram before ordering.
Before you choose
Select 2, 3 or 4 locks. Keys match within that pack; separate packs are not guaranteed to match.
Free standard shipping
Currently shipping within the United States. 1–2 business days to process · 5–8 business days in transit.
THE DETAILS THAT DO THE WORK
Built from 6061 aluminum for a dependable balance of strength, corrosion resistance, and manageable weight. The anodized finish forms an integrated protective oxide layer that helps resist moisture, surface wear, and regular outdoor exposure.
The round lock body surrounds the shackle and locking pin, reducing exposed areas accessible to bolt cutters and prying tools. This concealed design helps deter tampering and provides added protection for cargo, tools, equipment, and stored belongings.
The stepped-back design creates an enlarged rear opening for compatible swivel hasps commonly found on rear and side enclosed trailer doors. The additional clearance helps the puck lock engage securely around the hasp. Measure your hasp before ordering to confirm compatibility.
Secure each trailer door lock with one firm push—no key is required when locking. The spring-loaded mechanism makes frequent loading, unloading, deliveries, and storage stops quicker and easier, while a key is required for controlled unlocking.
Choose 2, 3 or 4 black locks, supplied with 6, 9 or 12 keys respectively. Each supplied key operates every lock within that purchased pack; separate packs are not guaranteed to match.
SPECIFICATIONS & COMMON QUESTIONS
| Model | BQS-001 |
|---|---|
| Pack size | Select 2, 3 or 4 locks above |
| Color | Black |
| Keying | Keyed alike within this pack |
| Material | 6061 aluminum |
| Finish | Anodized |
| Locking | Push to lock; key required to unlock |
| Rear opening (width × height × depth) | 1-3/4 × 7/8 × 1-1/8 in, as shown in the fit diagram |
| Lock-body diameter | 2-3/4 in |
| Hasp exclusions | The two container-door latch styles marked incompatible in the fit chart |
Need a fit check? Contact NIWNIW with your equipment model, clear photos and measurements. Please wait for confirmation if any detail is unclear.
Matching keys are specified within this pack only. Separate purchases are not guaranteed to share a key pattern.
READY TO UNPACK
| Selected pack | Locks | Keys |
|---|---|---|
| 2-lock pack | 2 | 6 |
| 3-lock pack | 3 | 9 |
| 4-lock pack | 4 | 12 |
Each supplied key operates the locks in that purchased pack. Separate packs are not guaranteed to match. Door hasps are not included.
A CLOSER LOOK
