| Size | M3 to M64 |
|---|---|
| Type | Nut |
| Standard | Din, Iso, Jis, Gb, Is, Bs, Astm |
| Length | 5.5mm to 95mm |
| Material | Stainless Steel, Monel, Inconel, Incoloy, Hastelloy, Nickel, Silicon Bronze, Phosphor Bronze |
Heavy Hex Nuts
Caliber Enterprise is a leading Heavy Hex Nuts manufacturer that offers strong and durable fastening solutions designed for heavy-duty applications. The Hex Nuts, which are heavy are bigger and heavier than the normal hex nuts, and hence allow more load-bearing capacity and are stronger. They are extensively applied in the structure work, heavy machinery, construction projects and in the industries that need strong connections and are subjected to extreme pressures. These Nuts are made using the best materials, which guarantee their resistance to wear, stress, and corrosion thus suitable in tough conditions.
Material & Grades Table – Heavy Hex Nuts
| Material | Grade / Standard | Nut Size | Thread Pitch (mm) | Across Flats (mm) | Approx. Weight (kg/1000 pcs) |
|---|---|---|---|---|---|
| Carbon Steel | ASTM A563 / Grade A | M12 | 1.75 | 18 | ~28.5 |
| Alloy Steel | ASTM A194 Gr 2H | M16 | 2.0 | 24 | ~65.0 |
| Stainless Steel | AISI 304 / ISO 4033 | M12 | 1.75 | 18 | ~30.0 |
| Duplex Steel | UNS S32205 | M16 | 2.0 | 24 | ~68.0 |
| Copper Base Alloys | C36000 (Brass) | M12 | 1.75 | 18 | ~32.0 |
| Nickel Alloy | Inconel 625 | M16 | 2.0 | 24 | ~72.5 |
Type of Sub-products

Heavy Hex Finish Nuts Heavy Hex Finish Nuts
Used in general structural and industrial applications with standard strength requirements.

Heavy Hex Jam Nuts Heavy Hex Jam Nuts
Thinner than finish nuts, used as a locknut to prevent loosening under vibration.
