Designed for heavy-duty stapling jobs, these silver or gray alloy steel collated staples are compatible with STANLEY PHT150C, TR100, TR200, TRE500, TR100HL, and Arrow models including T50, T50PBN, ETF50, T55, HT50, and Powershot 5700. Each package contains 1,000 U-shape staples, sized at 27/64 in. crown width (0.375 in.), making them ideal for tasks such as insulation, carpet underlaying, and roofing felt. The durable construction ensures reliable performance for both professional and DIY projects. With a total package weight of 0.32 lb. and an individual item weight of 2.5 lb., these staples are easy to handle and store. Perfect for use with staple removers and plier stapler crafting tools, they offer versatility for a variety of fastening needs. Manufactured by Stanley Consumer Tools, these staples deliver strength and precision for your toughest projects, ensuring secure and long-lasting results every time.