Mild steel Coach Bolts for timber connections with a spun galvanised finish for external applications.

M20 Coach Bolts (Cup Square Hex) to Din 603.
Thread M20 x 2.5mm Pitch – Head Diameter Min 45.2mm Max 46.8mm – Head Height Min 9.95mm Max 11.05mm
Thread Length for M20
up to 125mm long has a thread of 46mm thread
125mm up to 200mm long has a thread of 52mm thread
200mm Plus has a thread of 65mm thread.
Some of the Coach Bolts come fully threaded please ask if this is important.

We also stock Galvanised Nyloc Nuts to suit the galvanised coach bolts.

The Galvanised nylocs have oversized threads to fit the thicker coating of the Galv.