16GA 7/16" Medium Crown Staples - Galvanized Finish - For Use In - Spotnails: X1S6650, M1S6650, W1S6638 to 1-1/2", W1S6638V to 1-1/2", X1S6650LM, MS6650i(LM), XS6650(LM); Senco: NS20BXP, NS20XP, SNS200XP-BST, M1, M2, M2+, SNS45, SNS40, SNS41XP, SNS44XP, SNS45XP, SNS50, SKS N12-N17, SKSXP-N; Bostitch: 651S5, 438S5, 538S5, 650S5-1, T40S5, 750S5-1; Fasco: F47C B7/G-65, F44AC G-50TL, F4 PG-50, F45C G-55, R3 CG-40CT, R4 PG-50CT, F45C B7-55 SS; Metabo: 5008AB/AC(2); Grip-Rite: GRTSM2016C, GRTSM200; Dewalt: D51430; Makita: AT1150A; Max: TA551A/16-11, TA551/16-11; Porter: MS200; Jamerco: JTSN165 to 1"-2"