General description A domed head bolt with a square anti-spin shoulder, primarily used for clamping timber or attaching ironmongery to timber. Coated with a patented multi-layer corrosion-resistant plating, these bolts are designed to withstand 1,000 hours of salt spray testing, making them ideal for outdoor applications. Technical specifications Type: Carriage Bolts DIN603 Size: M10 x 180 Includes: Hex Full Nuts DIN934 & Form A DIN125-A Washer Finish: Exterior Silver