Cup square carriage bolts DIN603 and hexagon nut DIN934 are mostly used in wood. They are fully threaded between 100-150mm. All sizes: M6 - 6mm, M8 - 8mm, M10 - 10mm. COACH BOLTS CUP SQUARE CARRIAGE BOLTS SCREWS WITH HEXAGON HEX NUTS ZINC PLATED.
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