Carriage Bolt
Carriage Bolts
Our Carriage Bolts are designed for secure, tamper-proof fastening in wood and metal assemblies. Characterized by a smooth, round dome head and a square neck directly beneath it, these bolts self-lock into the material when tightened, preventing rotation. This unique design provides a smooth exterior finish that is safe and aesthetically pleasing, making them ideal for fencing, furniture, and security applications.
Technical Specifications
| Head Style | Round dome head (smooth profile) |
|---|---|
| Neck Style | Square neck to resist turning during installation |
| Thread Type | Metric and Inch, UNC/UNF (Partially or Fully Threaded) |
| Size Range | M6 to M20 | 1/4” to 3/4” Diameter |
| Length Range | 20 mm to 200 mm | 3/4” to 8” |
| Standards | ASME B18.5, DIN 603, ISO 8677 |
| Materials | Carbon Steel, Stainless Steel (304/316), Galvanized Steel |
| Finish | Zinc Plated, Hot-Dip Galvanized, Black Oxide, Plain |
Key Features & Applications
- Self-Locking Square Neck
- Timber & Decking Construction
- Tamper-Proof from Exterior
- Security Fencing
- Smooth, Snag-Free Head
- Outdoor Furniture Assembly
- Automotive Truck Beds
- Playground Equipment
