Surebonder 55038 Heavy Duty 3/8-Inch Length Staples, Arrow T50 Type, 1250 Count .417" Crown, 3/8" Leg Length Fits Surebonder models: 5690, 5600, 5685, 5800, 9600A Arrow T50; Stanley TR110, TR150HL; Powerfast (Swingline) 10401, 31690, 31890; Ace Hardware 2014413; Craftsman 68517, 68492, 68515; Black & Decker 5700 Use for insulation, weather stripping, wire mesh, roofing paper Steel Material