The Arrow RK6120 Rivet Pack has an assortment of sizes and types of rivets. The pack of 120 is capable of bonding materials that staples and glue cannot touch. The RK6120 is used for safe, solid and secure joining of metal parts. Contents 25 - 1/8in Short Aluminium Rivets. 20 - 1/8in Medium Aluminium Rivets. 15 - 1/8in Long Aluminium Rivets. 25 - 1/8in Short Steel Rivets. 20 - 1/8in Medium Steel Rivets. 15 - 1/8in Long Steel Rivets.