Arrow A508SS1 T50 Heavy Duty Staples 1/2\" (Pack Of 1000) The Arrow A508SS1 are the worlds best-selling heavy-duty staple. They are suitable for use with a number of different staplers, delivering exceptional holding power in softwoods, insulation and carpet padding. Features: The world’s best-selling heavy-duty staple platform Used for all heavy-duty stapling applications Best for softwoods, insulation, carpet padding, house wrap and roofing paper Universal fit will also work with Stanley, Dewalt and Bostitch staplers Corrosion-resistant Specification: Size: 1/2\" (12mm) Pack Qty: 1000