1Pc 1/2-12 2-1/2 2-3/4 3 Inch 12.9 Grade BSW British Standard Half Coarse Thread Carbon Steel Allen Head Hexagon Socket Screw - AliExpress

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BSW Thread Hex Nuts 1/2-12 1/8-40 3/16-24 5/32-32 UK Standard

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12X1-1/2 DRILL PT SCREW HEX ZN 214.12.112

5/16 3/8 1/2 BSW Allen Bolts Full Threaded Socket Head Cap Screws A2 SS-304 : : Tools & Home Improvement

Grade12.9 British Standard Partial Thread Hexagon Socket Head Cap