M5 Coach bolt & cup square bolts
The M5 Coach Bolt is the smallest in the range, with a thread diameter of just 5 millimetres. Available in various lengths these useful M5 cup square bolts are perfect for creating strong joints between timber and metal, or timber and timber. Sometimes referred to as M5 Carriage Bolts, they are characterised by a round head and a square neck that prevents the bolt from turning while the nut is tightened.
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