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Prod. # Size Each price Bag price Bulk price Price Buy
2990 1/2" $0.24 / ea $19.28 / 100 $170.00 / 1,000 $0.24 / ea $19.28 / 100 $170.00 / 1,000
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USS flat washer dimensions
Product details
Bolt Depot product# 2990
Units US
Category Washers
Used to spread the load of a bolt or screw over a larger area or to help prevent loosening under vibration.
Subcategory USS flat washers
USS pattern is the most common type of flat washer.
Material Steel
A low carbon steel for general use.
Plating Hot dipped galvanized
Hot dipped galvanized is a coating for very good corrosion resistance.
Size 1/2"
Outside diameter 1-3/8" (Min 1.368", Max 1.380")
Plating specification A153
Inside diameter 9/16" (Min 0.547", Max 0.577")
Thickness 0.086" - 0.132"
Dimensional standard ASME B18.21.1

Additional information