Coach Bolts, or Carriage Bolt as they are also known, are manufactured to DIN 603 with a fully machine threaded stem. Coach Bolt's particular shape allows them to lock into a square hole, preventing rotation when locking using a suitable nut. The large head also spreads the forces over a large surface area which is useful when joining softer materials such as wood. The smooth dome head also provides a clean aethetic finish.

Most commonly used in conjunction with Washers and Nuts, these products are used to hold fasteners in place, joining two or more parts together. We also offer Socket Head Screws and Machine Screws.

Our Carriage Bolts are available in A2 (Equivalent to 304) or A4 (Equivalent to 316 Marine Grade) Stainless Steel in metric sizes from M5 x 12 to M16 x 200. For our full selection of sizes and materials see the product table displayed below, or get in touch with a member of our staff.

Our Coach Bolts are also available as Partially Threaded Carriage Bolts.

Key Product Features:

• Manufactured from a high strength Stainless Steel 
• Recommended for use with threaded components
• Easy to install and use

Commonly Used For:

• To install on internally threaded components
• Wood joinery and carpentry

Also Refered to As:

• Coach Bolts
• Carriage Bolts
• Square Neck Bolts
• Mushroom head Square Neck Bolts

Equivalent Standards:

• DIN 603 (Germany, Deutsches Institut für Normung)
• ISO 8677 (International Standards ISO)
• UNI 5731 (Italy, Ente Italiano di Normazione)
• CSN 021319 (Czech technical standard)