Rehabilitation Advantage White Nylon Plastic Push-In Ratchet Rivets 5/16&rdquo; Long x &frac14;&rdquo; Diameter Round Head &ndash; 100 Rivets Per Pack Rehabilitation Advantage White Nylon Push-In Ratchet Rivets are 5/16 Long x  DIA Round Head Made from a durable Nylon Plastic Material Ratchet Rivets snap and lock into one another, while attaching one piece of material to another Ratchet Rivets can be used to fasten Metal, Wood, Circuit Boards, Plastic Panels, and much more Sold as a Pack of 100; Competitively priced, while ensuring long-lasting use and superior durability