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Cup Square Hex Bolts and Nuts
Cup square hexagon bolts and nuts (also known as CARRIAGE BOLTS or COACH BOLTS) are mostly used in wood. They have a plain domed head with a square neck underneath. The square pulls into the wood as the nut is tightened for a very secure fit, preventing the bolt from turning. As the head is completely plain they make a popular choice where a secure or decorative finish is required.
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Metric DIN 603
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Thread Forms
Metric
Materials
Mild steel, Grade 8.8
A2/304 Stainless Steel
A4/316 Stainless Steel
Finishes
Bright zinc plated
Zinc and yellow
Black zinc
Galvanised |
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