Used to spread the load of a bolt or screw over a larger area or to help prevent loosening under vibration.
Subcategory
Flat washers
General use flat washer
Material
Steel
A low carbon steel for general use.
Plating
Zinc
Zinc plated for moderate corrosion resistance.
Size
20mm
Outside diameter
37mm
Inside diameter
21.00mm - 21.33mm
Thickness
2.7mm - 3.3mm
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