A locking washer with teeth or prongs which extend outward from the outside edge of the washer as well as on the inside edge. This maintains essential tension and opposes any loosening influence on the fastener. The flexed teeth absorb shock, vibration and slipping.
The combination tooth washer is preferred when a larger bearing surface is required. It is also often used when there is an oversized hole.
Carbon Steel: SAE 1050 – 1065 spring steel.
18-8 Stainless Steel: SAE 301 – 305
Carbon Steel: Rockwell C40 – 50
18-8 Stainless Steel: Rockwell C20 – 45
To find the full specification sheet go to: