StopLock Size and Key Compatibility Chart
Use this chart to match the display hooks you already have to a StopLock, and each lock or hook to its key. The size in a StopLock's name is the diameter of the lock opening, so measure the metal rod of your hook before you order.
StopLock sizes
| StopLock | Lock opening | Hook it is listed for | Pack | Key |
|---|---|---|---|---|
| 4.5mm Red StopLocks, R106 | 4.5mm (0.18 in) | Thin hook rods up to 4.5mm. The hook must have a bend at the front. | Case of 25 | R100, sold separately |
| 6mm Red StopLocks with Stop Sign, R104 | 6mm (0.24 in) | Check your rod diameter and end shape. | Case of 25 | R100, sold separately |
| 6mm Red StopLocks (Plain), R110 | 6mm (0.24 in) | Check your rod diameter and end shape. | Case of 25 | R100, sold separately |
| 6mm White StopLocks, R111 | 6mm (0.24 in) | Check your rod diameter and end shape. | Case of 25 | R100, sold separately |
| Red StopLocks (Plain), R101 | See listing | Rods 0.186 to 0.224 inches thick, with a bend at the front. | Case of 25 | R100, sold separately |
| 6mm Red StopLock Starter Kit, R105 | 6mm (0.24 in) | Hook stems up to 0.224 inches thick, with or without a ball on the end. The hook must have a bend at the front. | 100 locks | One R100 key included |
| 7mm Red StopLocks, R108 | 7mm | Thicker hooks. Check your rod diameter and end shape. | Case of 25 | R100, sold separately |
Dimension drawings
Which key opens what
| Key | Opens | Does not open |
|---|---|---|
| R100 StopLock Magnetic Security Key | Every StopLock in our StopLocks collection, and security hooks that specifically require a StopLock-style key. | HandKey-style locking hooks. |
| B100 Flat Magnetic Hand Key | Compatible HandKey-style locking hooks, including our 6 inch and 9 inch locking hooks for slatwall. | StopLocks. |
Security keys are sold to businesses only, and we verify each key order before it ships. Read which magnetic key fits your StopLocks or security hooks for the details.
How to measure
- Measure across the metal rod with calipers, where the lock will sit. Measure the rod, not the hook length.
- Look at the front of the hook. Several of our locks need a bend at the front.
- Check which fixture the hook hangs on. See display types for pegboard, slatwall, gridwall and slatgrid.
The full walk-through is in how to measure peg hooks for StopLocks.
Not sure? Request samples of all three StopLock sizes, call 812-201-5900, or email mary@sensortags.com with your hook measurement and a photo of the hook.