This page features Metric Carriage Bolts in both DIN 603 standard and ISO 8678 low collar styles, designed with a square shoulder under the domed head to prevent rotation during installation.
Available in Class 4.6 and 8.8 zinc-plated or yellow zinc-plated steel, as well as A2 stainless steel for excellent corrosion resistance in damp or outdoor environments.
ISO 8678 versions offer a reduced collar height for applications with lower clearance requirements. Matching square hole carriage bolt-specific washers are available in our Washers category to ensure proper fit and performance in your assembly.