M20 x 90mm Hex Bolt & Nut GAL Trade Box of 20

Hexagon head 4.6 grade bolts include the following features :

• Australian standard 1111.1. 
• Supplied complete with corresponding hex nuts. 
• 2 free washers per bolt in each box or pack.
• Hot dipped galvanised finish for maximum corrosion protection.
• Suitable for general purpose internal and external bolting.
• Specifically recommended for use in treated timbers.

Please note : Images are of a generic standard Scrooz bolt and nut and thread lengths vary slightly per size so please check with us before ordering if this dimension is critical. Typically, thread lengths for our hex bolts will be to the recognised international metric standard as follows :

• For bolt lengths up to 125mm - 2 x diameter + 6mm
• For bolt lengths 125mm to 200mm - 2 x diameter + 12mm
• For bolt lengths over 200mm - 2 x diameter + 25mm

So for example an M12 x 130mm bolt will have a thread length of

24 + 12 = 36mm

All bolt lengths are measured from under the head.