General description A domed head bolt with a square anti-spin shoulder, the TIMCO Carriage Bolts DIN603 are primarily used for clamping timber or attaching ironmongery to timber. They are designed to provide a secure and stable fastening solution. Technical specifications Type: Carriage Bolts DIN603 Size: M10 x 75 Coating: Patented multi-layer corrosion resistant plating Corrosion resistance: Withstands 1,000 hours salt spray test