They are designed to prevent a nut or bolt head from loosening with the strut action of the teeth. They work exceptional way with larger screw or bolt heads. The purpose of installing washers in a typical bolting system is to distribute the loads under bolt heads and nuts by providing a larger area under stress.

• Used for high vibration resistance due to positive rib contact.
• Excellent Pretensioning.
• Through proper radius selection, no splitting/cracking occurs during tightening.
• The concentric force of the washer eliminates the chances of bending the fastener.
• Extensive application and flexibility, minimizes stocks.