12mm Diameter A4 316 Stainless Steel Coach screws Hexagon Head Din 571 – Hexagon head wood screws, also known as lag screws, available in extra long lengths up to 300mm in stainless steel A4 316 mainly for marine or coastal environments. We supply coach screws from 4mm diameter up to 16mm diameter as standard for stainless steel. Large quantities can be made to order for bigger diameters.
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