#10 Extra Heavy Duty Split Lock Washer Mechanical Zinc Yellow Made in USA (Pack Qty 7,000) BC-10WSXVY

The increased bearing area allows extra heavy splits to absorb greater tightening torques and maintain tension while under heavy loads SAE 1055 - 1065 carbon steel. Rockwell C38 - 46 With the washer in a vice with the split ends free and straight above the vice jaws, a 90° segment of the free end is gripped with a wrench and bent. Washers are to withstand being twisted through a 90° angle without signs of fracture. When the washer ult