M20 X 400 S/C 4.6 SQUARE SQUARE HOLDING DOWN BOLT

A Self Colour Grade 4.6 Square Square Holding Down Bolt. Used to bolt down Structural Steelwork to concrete flooring / foundations. These bolts need to be installed before the concrete is poured and would need a Square Plate Washer and a Wax Cone.

Diameter:  M20
Pitch:  2.50mm
Length:  400mm

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