Rivets are the secert weapon in the Arrow fastening line-up, capable of bonding materials that staples and glue can't touch. Most often used for sheet metals applications like gutter work, sheet metal, HVAC, and more. Includes: 25 - 1/8" (3mm) diameter, 1/8" (3mm) grip short Aluminum rivets20 - 1/8" (3mm) diameter, 1/4" (6mm) grip medium Aluminum rivets15 - 1/8" (3mm) diameter, 1/2" (12mm) grip long Aluminum rivets25 - 1/8" (3mm) diameter, 1/8" (3mm) grip short Steel rivets20 - 1/8" (3mm) diameter, 1/4" (6mm) grip medium Steel rivets15 - 1/8" (3mm) diameter, 1/2" (12mm) grip long Steel rivets | Arrow Rivet Assortment Pack