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.

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