T50 staples are the world's best-selling heavy-duty staple platform. Made to deliver exceptional holding power, these staples are used for all heavy-duty stapling applications - from installing insulation, housewraps, and roofing underlayments to upholstering fine furniture and window treatments. A true workhorse of a fastener, Arrow T50 staples are made to precise specifications on state-of-the-art equipment. For use with Arrow Model No. HT-50A, T50, and T55.