One single small size aluminum washer commonly used for kayak construction. 5/8 inch in diameter, 1/4 diameter center hole, use with a 10-32 or 1/4-20 machine screw. Can be used with 3/4 inch webbing strap and other assorted applications. (Original Perception part number 1FAS013. Confluence part number 9800423). 34WEB 1/4-20-HDW 10-32-HDW