M20 x 40mm Structural Bolts GAL Trade Box of 25
Grade 8.8 Galvanised Assemblies With Nuts & Washers
Heavy duty high tensile 8.8 grade structural bolt assemblies comprising:
- High strength high tensile bolt
- Structural high tensile nut (deeper than standard)
- 1 through hardened washer (recognised by the nibs) per bolt in each box or pack,
- Manufactured to Australian standard AS1252.
- Structural bolts come fully assembled with the nut and washer attached
- Hot dipped galvanised finish for maximum corrosion protection
Suitable for structural high strength bolting of steel and timber components in construction and engineering.
- 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.
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