• Representative carriage bolt with smooth domed round head, square neck immediately beneath head and threaded shank; size and specification vary — see product details
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Merchant Steel Solutions Ltd

m8 × 20 mm Cup Square Bolts

m8 × 20 mm Cup Square Bolts

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Cup-square or carriage bolt with a rounded head and a square neck beneath it. The square neck helps resist rotation when it engages a suitable hole or timber.

Product details

  • Product specification: m8x 20mm cup square bolts

Choosing and using this product

Select the diameter and length for the joint, allowing for the material stack and nut engagement. Check whether the chosen listing includes a nut, and use washers where the assembly requires them.

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