... SM51 M8; SM76 M10Detailed Selling Lead Description Specifications:SM-25 Tensile strength(LBS): 500, Torgue Strength(FT ... ): 6, screw(mm): 6, weight(G): 28 SM-30 Tensile strength(LBS): 550, Torgue Strength(FT LBS ... 10, screw(mm): 6/8, weight(G): 50 SM-40Tensile strength(LBS): 650, Torgue Strength(FT LBS): 10 ... 12, screw(mm): 6/8, weight(G): 86 SM-45 Tensile strength(LBS): 1000, Torgue Strength (FTLBS): ...