National Bolt & Nut Corp. - USS Flat Washers

One of the most common types of flat washers, National Bolt & Nut’s Type A wide series USS flat washers possess a flat bearing surface underneath the fastener that more evenly distributes pressure. Designed to meet most industrial applications, ranging from maintenance to manufacturing and repair, USS flat washers help prevent a nut, bolt, or screw from pulling through the material. Our USS flat washers meet ANSI B18.22.1 dimensional specifications.
Other materials and finishes available. For further information, call or send an information request.

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Unit of Measure

Items	Custom Custom USS Flat Washer	pn-12284 USS Flat Washer - - - Plain	pn-12285 USS Flat Washer - - - Plain	pn-12286 USS Flat Washer - - - Plain	pn-12287 USS Flat Washer - - - Plain
Series	N/A	N/A A Wide Series	N/A A Wide Series	N/A A Wide Series	N/A A Wide Series
Size	N/A Custom	N/A 3/16 in	N/A 1/4 in	N/A 5/16 in	N/A 3/8 in
Finish	N/A Custom	N/A Plain	N/A Plain	N/A Plain	N/A Plain
Material	N/A Custom	N/A Carbon Steel	N/A Carbon Steel	N/A Carbon Steel	N/A Carbon Steel
Weight / C	N/A	N/A 0.28 lb	N/A 0.67 lb	N/A 1.15 lb	N/A 1.49 lb