All Metal Lock Nuts
All Metal Lock Nuts are designed to provide secure, vibration resistant fastening without the use of nylon inserts, making them ideal for high temperature and heavy load environments.
Minimum order : 400 items
Customization as per requiments
Size | M3 to M100 (Metric) / ¼" to 4" (UNC/UNF/BSW/BSF) |
Type | Nut |
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 |
Caliber Enterprise is a trusted lock nut manufacturer. Lock nuts are specialized fasteners designed to resist loosening under conditions involving constant vibration, rotational force or fluctuating temperatures. They achieve this by incorporating either a nylon insert or a deformed metal thread that generates prevailing torque during installation. Lock nuts offer improved grip and stability in dynamic load situations and come in a variety of forms, including nylon insert, top lock, and all metal kinds. These nuts work with a variety of metric and imperial bolts since they meet international standards such as DIN 985, ISO 7040, and ANSI B18.16.6. Both coarse and fine thread options are available, and common sizes vary from M3 to M48 and ¼" to 2".
Lock nuts, which are made of carbon steel, brass, alloy steel, and stainless steel, can be surface treated with PTFE, black oxide, zinc plating, or hot dip galvanization to increase their resistance to corrosion under harsh conditions. They are perfect for assembly in the automotive, rail, energy, aerospace, and structural systems because of their secure locking capability. Trusted by industrial engineering firms, OEMs and global sourcing teams for consistent performance under rigorous B2B demands.
All Metal Lock Nuts are designed to provide secure, vibration resistant fastening without the use of nylon inserts, making them ideal for high temperature and heavy load environments.
Stainless Steel Lock Nuts offer excellent corrosion resistance, durability, and vibration resistance, making them ideal for marine, chemical, and outdoor applications.
What is a lock nut?
A lock nut is a type of fastener designed to resist loosening under vibration, torque or thermal expansion. It typically features either a nylon insert or a deformed metal section that creates additional friction against the bolt threads, maintaining clamping force. Lock nuts are used when a secure long term fastening solution is required especially in dynamic or high stress environments where standard nuts may fail.
What is a lock nut used for?
A lock nut is used to securely fasten components that are subjected to movement, vibration or shifting loads. Its locking mechanism helps maintain bolt tension preventing loosening over time. Common applications include rotating machinery, structural joints, engine mounts and any mechanical system where reliable fastening is critical. It is particularly effective in scenarios where repeated tightening is not feasible or where safety is a concern.
Where are lock nuts used?
Lock nuts are widely used in industries such as automotive, aerospace, railways, heavy equipment manufacturing and construction. They are commonly installed in applications like suspension systems, machinery assemblies, electrical enclosures and pressure equipment. Their ability to withstand vibration and thermal cycling makes them essential in critical systems requiring long term stability and safety.
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