HSS Extended Long Tap American Standard UNC UNF UNEF UN UN UNS Straight Nut Thread Screw 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8

HSS Extended Long Tap American Standard UNC UNF UNEF UN UN UNS Straight Nut Thread Screw 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8

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