Surebonder 88516 T50 Type Stainless Steel Number-4- 55516 Heavy Duty Staple, 5/16-Inch Length Stainless Steel .417" Crown, 5/16" Leg Length Fits Surebonder 5690 Triggerfire, 5600 HD 3 in 1 Stapler, 5685 HD Professional/Contractor Gun, 5800 HD Hammer Tacker, 9600A Pneumatic Stapler ArrowT50, StanleyTR110 TR150HL Powerfast(Swingline)10401,31690,31890, Ace Hdwe2014413, Craftsman,68517,68492,68515, Black & Decker5700 Applications: upholstery, fabric covering, window coverings, etc