Surebonder 55916 Heavy Duty 9/16-Inch Length Staples, Arrow T50 Type, 1250 Count .417" Crown, 9/16" Leg Length Fits Surebonder models: 5690, 5600, 5685, 5800, 9600A Arrow T50; Stanley TR110, TR150HL; Powerfast (Swingline) 31690, 31890; Ace Hardware 2014413; Craftsman 68517, 68492, 68515; Black &amp; Decker 5700 Use for insulation board, metal lath, roof covering, etc. Steel Material