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 low carbon steel for general use.
Plating
Zinc
Zinc plated for moderate corrosion resistance.
Size
5/16"
Outside diameter
Maximum 0.593"
Inside diameter
0.314" - 0.322"
Thickness
Minimum 0.078"
Dimensional standard
ASME B18.21.1
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