15GA 1/2" Medium Crown Staples - Galvanized Finish - For Use In - Spotnails: M1S7564, M1S7564LM, FS7550 to 2", MS7564, MS7564LM; Duo-Fast: FloorMaster-200-S; Bostitch: BTFP12569, M111-FS; Metabo: N5010AB, N5009AF; Grip-Rite: GR200FS; Dewalt: DWMIIIFS; Primatech: 260, 250, 245, 220, 145FC; Atro: Falcon 16NC