8x100 Hex Head Concrete Screw Bolt Galvanised

14g = 6.4mm outside diameter 10= threads per inch = 100mm over all length.Galvanised Batten Screws, for fastening heavy timbers where corrosion resistance is required, popular in external environments and treated pine.CLICK IMAGE TO SEE QUANTITY PRICE BREAKS

Gal washer

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10 Gauge x 50mm Stainless Steel Square Drive Decking Screw 304 Stainless

Use number 2 square driver bit

 

Driver Bit 8 to 12 guage, Industrial Quality high speed steel.

M10x38x38x3 Galvanised Square Washer