TRA704T. Stanley® TRA704T, Heavy-Duty Narrow Crown Staples 1/4", 1,000 PackFor heavy duty stapling jobs such as insulation, carpet underlaying and roofing felt. Color-coded packaging makes size and product selection easy.For use with: TR100 series, TR200 series, TRE500 series, PHT150, TR60; Arrow® ET-50™, ET2025™, ETC50™, ETF50BN™, ETN-50™, T-50®PBN, T55™, T55™C, T-50®, T55™, HT50A; Powershot™ 5700, 8000 ...