Junkers-Verified Anti-Loosening
The knurled locking surface — verified by the Junkers test standard — prevents nut loosening from vibration and transverse forces, keeping bolts tight through dynamic load cycles.

Bolting Fasteners
The HYTORC J-Washer takes the proven HYTORC Reaction Washer to an entirely new level by adding a locking feature that minimizes loosening and keeps bolts tight under dynamic loads. A strategic ridge band with Junkers-verified knurled locking surface prevents fastener loosening from vibration and transverse forces — while delivering all the safety, speed, and tool-life benefits of the standard HYTORC Washer.
| Type | Reaction Washer with Locking Mechanism |
|---|---|
| Lock Test | Junkers Test Standard Verified |
| Compatible | HYTORC Torque Tools |
Documents
The knurled locking surface — verified by the Junkers test standard — prevents nut loosening from vibration and transverse forces, keeping bolts tight through dynamic load cycles.
Outer reaction lobes engage directly with socket drivers or reaction plates — eliminating separate reaction arms and pinch points to reduce hand and body injury risk on every job.
Locks the fastener assembly during tightening and eliminates backup wrench requirements — reducing job time significantly when paired with HYTORC torque tools.