T50; 3/8-in Heavy-Duty Stainless Steel Staples (1,000-Count) Flat crown Use in areas that need the protection of stainless steel to help fight corrosion, rust-resistant Works with Arrow stapler models: TT50, T50X, T50RED, ET50RED, T50ELITE, T50, T50PBN, ETF50BN, ET501, HT50, HT55, 5700, 8001 Also works with Craftsman, Stanley, PowerShot, Black & Decker, and Ace staplers Arrow T50 3/8-in Heavy-Duty Stainless Steel Staples (1,000-Count)