Used to spread the load of a bolt or screw over a larger area or to help prevent loosening under vibration.
Subcategory
Lock washers
Split lock washers place tension against a nut after tightening, to help prevent loosening.
Material
Steel
A tempered medium carbon steel.
Plating
Zinc
Zinc plated for moderate corrosion resistance.
Grade
Grade 8
Grade 8 is stronger than grade 5, and is commonly found in high strength automotive applications.
Color
Yellow
Size
9/16"
Outside diameter
Maximum 0.975"
Inside diameter
0.564" - 0.574"
Thickness
Minimum 0.141"
Dimensional standard
ASME B18.21.1
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