M6 bolts

M6 bolts are widely used in general construction, including joining timber frames, assembling steelwork, mounting hardware, and securing fixings in concrete or masonry. The “M6” refers to their 6mm thread diameter, making these bolts a step up in strength from M5 bolts, while still suitable for precise or medium-duty applications. You’ll commonly use them where moderate mechanical strength and accuracy are needed.

Available in hex head, socket head, button head, and countersunk types, M6 bolts come in a range of lengths, thread pitches, and materials. Stainless steel versions offer corrosion resistance, while zinc-plated steel is standard for indoor use.

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