Tandy Leather | Rapid Rivets X-Small 100/pk #1278-12 | Nickel PlateTandy Leather Rapid Rivets X Small 100 pk #1278 12 Nickel Plate Extra Small: Cap 1 4" (6 mm), Post 3 16" (5 mm), Base 1 4" (6 mm) Small: Cap 1 4" (6 mm), Post 1 4" (6 mm), Base 1 4" (6 mm) Medium: Cap 5 16" (8 mm), Post 5 16" (8 mm), Base 5 16" (8 mm) Large: Cap 5 16" (8 mm), Post 1 2" (13 mm), Base 5 16" (8 mm) Use setter #8100 00 and anvil #8056 00 or setter kit #8105 00.