| Size | M3 to M100 (Metric), ¼" to 4" |
|---|---|
| Type | Nut, Bolt, Screw, Washer, Rivet, Threaded Rod, Studs, Coated, Nails, Custom Fasteners |
| Standard | Din, Iso, Jis, Gb, Is, Bs, Astm |
| Length | 2 mm to 25 mm |
| Material | Stainless Steel, Monel, Inconel, Incoloy, Hastelloy, Nickel, Silicon Bronze, Phosphor Bronze |
Self Locking Nuts Manufacturer in India
Caliber Enterprise is a leading Self Locking Nuts Manufacturer that produce high quality fastening solutions constructed with quality and withstand. These nuts are also fitted with a locking mechanism that does not easily loosen due to vibration, pressure and torque. They are popular in the automotive sector, the aerospace industry, the heavy machinery industry and the construction industry where the secure fastening is important. Self Locking Nuts have a wide range of sizes, grades, and they are available in a wide range of finishes to ensure they have a long life in both normal and harsh environments.
Material & Grades Table – Self-Locking Nuts
| Material | Grade / Standard | Nut Size | Thread Pitch (mm) | Across Flats (mm) | Approx. Weight (kg/1000 pcs) |
|---|---|---|---|---|---|
| Stainless Steel | AISI 304 / ISO 7040 | M6 | 1.0 | 10 | ~4.2 |
| Alloy Steel | ASTM A194 Gr 2H (Nylon Insert) | M8 | 1.25 | 13 | ~8.4 |
| Duplex Steel | ASTM A194 Gr 8M | M10 | 1.5 | 17 | ~17.5 |
| Carbon / Alloy Steel | ISO 7040 (Zinc Plated) | M12 | 1.75 | 19 | ~30.5 |
| Copper Base Alloys | C36000 (Brass) | M8 | 1.25 | 13 | ~9.8 |
| Nickel Alloy | Inconel 718 | M16 | 2.0 | 24 | ~72.0 |
Self-Locking Nuts are constructions that can keep their fixing even when subjected to a vibration and a dynamic load, that is why they can be used in the mentioned fields of vehicles, rail, aerospace, and heavy machinery industries. A comprehensive table of materials and grades gives the engineers and the buyers in the B2B market the ability to choose the precise locking nut by its physical properties, heat resistance, and operating conditions for fastening that is dependable. We supply Lock Nuts, designed to prevent loosening under vibration, torque, and heavy loads.
Type of Sub-products

Nylon Insert Self Locking Nut Nylon Insert Self Locking Nut
These nuts include a nylon ring that deforms when threaded, providing resistance to loosening.

All Metal Self Locking Nut All Metal Self Locking Nut
Made entirely from metal, these nuts rely on mechanical deformation or elliptical threads for locking.
