16GA 1" Wide Crown Staples - Galvanized Finish - For Use In - Spotnails: X1S1640 to 1-1/2", X1S1650 to 2", X1S1664, X1S1640RFH to 1-1/2", X1S1640LM to 1-1/2", XS1640(LM), XS1650, XS1640RFH; Bostitch: 438S2-1, T40S2-CT, T50S2-1, T35-8, T35-32, 438S2-1, 450S2R(1); Fasco: F3C ATW-38; Grip-Rite: GRTS2550; Dewalt: DW451S2; Omer: WS38