Security Collars
- Composed of chrome-plated hardened steel.
- Reduces lock projection from the inside of the machine.
- Gives extra protection from prying for the exposed shoulder of the lock.
- Fits standard 3/4" diameter cam locks or switch locks.
- Various sizes available.
Security Washers
- Composed of plated steel.
- Fits standard 3/4" diameter cam locks with two flats.
| Stock No. | Type | Outer Diameter | Inner Diameter | Projection | Overall Height |
| 691-21 | Spur Washer | 1-1/8" | 3/4" 2 flats | 3/64" | 3/64" |
| 691-22 | Flat Washer | 1-1/16" | 3/4" 2 flats | 3/64" | 3/64" |
| 691-24 | Tension Washer | 7/8" | 3/4" | 1/64" | 1/8" |
| 691-25 | Security Collar | 1-3/16" | 3/4" | 1/16" | 1/4" |
| 691-28 | Security Collar | 1-3/8" | 3/4" | 1/16" | 5/16" |
| 691-29 | Security Collar | 1-3/8" | 3/4" | 3/16" | 7/16" |
 691-21 |
 691-25 |
 691-22 |
 691-28 |
 691-24 |
 691-29 |