Description:
A locking washer with teeth or prongs which extend outward from the outside edge of the washer.This maintains essential tension and opposes any loosening influence on the fastener. The flexed teeth absorb shock, vibration and slipping.
Applications:
The external tooth washer is preferred when finished appearance is less crucial as it provides the greatest torsional resistance and therefore locking efficiency because the teeth are on the largest radius.
Materials:
Carbon Steel: SAE 1050 – 1065 spring steel.
18-8 Stainless Steel: SAE 301 – 305
316 Stainless Steel: SAE 316
410 Stainless Steel: SAE 410
Hardness:
Carbon Steel: Rockwell C40 – 50
18-8 Stainless Steel: Rockwell C20 – 45
410 Stainless Steel: Rockwell C40 – 50
Product Line Codes:
Steel Black Zinc: WA047
Steel Black Oxide:WA048
Steel Yellow Zinc:WA049
Steel Zinc:WA050
18-8 Stainless Steel Black Oxide:ST215
18-8 Stainless Steel:ST216
410 Stainless Steel:ST217
To find full specification sheet go to:
http://www.aspenfasteners.com/Articles.asp?ID=137