Anchor's 1/2-Inch Medium Crown Galvanized Bostitch-Style 16 Gauge Sheathing Staples come 10,000 per box. These staples fit in the following tools: Spot nails XS76-8650, MS76-8650I, HL7616A, HL7616AP, HL7616B, HL7616BP, Bostitch T36-50, T-38-1, /T40S4, T40S4-CT, T55S4-1, 650S4, T50S4-1, 438S4, T38, Duo-Fast S762, Fasco F4P HD-50, Hilti SM200 A/b and SM200EP.