M12 x 120mm Coach Bolt Set
Structural Steel Components
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M12 x 120mm Coach/Carriage Bolt Set, Zinc Plated Specification Details Product Code CB17 Material Mild Steel Finish Zinc Plated Size M12 x 120mm M12 x 120mm coach bolt set — zinc plated bolt, nut and washer. M12 for heavier timber purlin connections through combined thicknesses. What Are Coach Bolts? Coach bolts (also called carriage bolts) are designed for fixing timber to steel. They have a domed head with a square neck underneath that pulls into the timber as you tighten the nut, stopping the bolt from spinning. This means you only need a spanner on the nut side — no need to hold the bolt h
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