| Size | M6 to M24 |
|---|---|
| Type | Bolt |
| Standard | Din, Iso, Jis, Gb, Is, Bs, Astm |
| Length | 20mm to 300mm |
| Material | Stainless Steel, Monel, Inconel, Incoloy, Hastelloy, Nickel, Silicon Bronze, Phosphor Bronze |
Carriage Bolts
Caliber Enterprise is a leading Carriage Bolts manufacturer that provides high-quality fastening solutions that are constructed to be strong and long lasting. Carriage bolts have a rounded front head and the neck under the head is a square shape, making it impossible to turn once secured into the wood or metal surface or any other surface. These bolts are not only utilized in the construction, furniture making, railways and machinery because they have a firm fit and have good load bearing capacity.
Material & Grades Table – Carriage Bolts
| Material | Grade / Standard | Bolt Size | Thread Pitch (mm) | Length (mm) | Approx. Weight (kg/m) |
|---|---|---|---|---|---|
| Carbon Steel | IS 1367 / Grade 4.6 | M8 | 1.25 | 50–150 | ~0.48 |
| Alloy Steel | ASTM A193 Gr B7 | M12 | 1.75 | 100–200 | ~1.05 |
| Stainless Steel | AISI 304 / ISO 4017 | M10 | 1.5 | 50–150 | ~0.65 |
| Duplex Steel | UNS S32205 | M16 | 2.0 | 150–250 | ~1.95 |
| Copper Base Alloys | C36000 (Brass) | M10 | 1.5 | 50–150 | ~0.72 |
| Nickel Alloy | Inconel 625 | M12 | 1.75 | 100–200 | ~1.15 |
Type of Sub-products

Carriage Bolt Short Neck Carriage Bolt Short Neck
Designed for use in thin metal or sheet materials, featuring a shallow square neck that prevents spinning during tightening.

Carriage Bolt Long Neck Carriage Bolt Long Neck
Used in wood or thick material connections, this type has a longer square neck for better grip and resistance against rotation.
