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Flat washers are used under bolt heads or nuts to increase the bearing area or offer greater hardness, so that the nut or bolt can be rotated without distortion of the bearing surface.

USS flat washers have a larger outer diameter than SAE flat washers.
USS FLAT WASHER, HDG (INCH)
Unit of Measure
1 2 

Item #

Item Name

Package Quantity

Web Price

25NWUSG N/A 1/4 USS FLAT WASHER GALVANIZED (LBS) N/A 50 QUOTE
31NWUSG N/A 5/16 USS FLAT WASHER GALVANIZED (LBS) N/A 50 QUOTE
37NWUSG N/A 3/8 USS FLAT WASHER GALVANIZED (LBS) N/A 50 QUOTE
43NWUSG N/A 7/16 USS FLAT WASHER GALVANIZED (LBS) N/A 50 $230.45
50NWUSG N/A 1/2 USS FLAT WASHER GALVANIZED (LBS) N/A 50 QUOTE
56NWUSG N/A 9/16 USS FLAT WASHER GALVANIZED (LBS) N/A 50 $225.30
62NWUSG N/A 5/8 USS FLAT WASHER GALVANIZED (LBS) N/A 50 $147.68
75NWUSG N/A 3/4 USS FLAT WASHER GALVANIZED (LBS) N/A 50 QUOTE
87NWUSG N/A 7/8 USS FLAT WASHER GALVANIZED (LBS) N/A 50 QUOTE
100NWUSG N/A 1 USS FLAT WASHER GALVANIZED (LBS) N/A 50 QUOTE
112NWUSG N/A 1 1/8 USS FLAT WASHER GALVANIZED (LBS) N/A 50 $246.07
125NWUSG N/A 1 1/4 USS FLAT WASHER GALVANIZED (LBS) N/A 50 $207.87
137NWUSG N/A 1 3/8 USS FLAT WASHER GALVANIZED (LBS) N/A 50 $238.04
150NWUSG N/A 1 1/2 USS FLAT WASHER GALVANIZED (LBS) N/A 50 $215.85
162NWUSG N/A 1 5/8 USS FLAT WASHER GALVANIZED (LBS) N/A 50 $248.30
175NWUSG N/A 1 3/4 USS FLAT WASHER GALVANIZED (LBS) N/A 50 $248.30
187NWUSG N/A 1 7/8 USS FLAT WASHER GALVANIZED (LBS) N/A 50 $248.30
200NWUSG N/A 2 USS FLAT WASHER GALVANIZED (LBS) N/A 50 $258.54
250NWUSG N/A 2 1/2 USS FLAT WASHER GALVANIZED (LBS) N/A 50 $277.07
300NWUSG N/A 3 USS FLAT WASHER GALVANIZED (LBS) N/A 50 $279.85
25NWUSG N/A 1/4 USS FLAT WASHER GALVANIZED N/A 100 $8.85
31NWUSG N/A 5/16 USS FLAT WASHER GALVANIZED N/A 100 $14.70
37NWUSG N/A 3/8 USS FLAT WASHER GALVANIZED N/A 100 $16.96
43NWUSG N/A 7/16 USS FLAT WASHER GALVANIZED N/A 5 QUOTE
50NWUSG N/A 1/2 USS FLAT WASHER GALVANIZED N/A 100 $38.54
Unit of Measure
1 2