Hexagonal Metal Lock Nuts

The fastening and opening of bolts and nuts adopts non-standard design, and the matching
non-standard tools are used to solve the opening and fastening problems. In general, other
wrenches cannot be inserted. In the appearance design of nuts and bolts, non-standard slotting,
opening or pentagonal, heptagonal, nine-corner or custom-made corresponding groove tools
have played a very good anti-theft effect

Cold heading process is one of the new processes for pressure machining of less or no cutting
metal. It is a processing method that utilizes the plastic deformation of metal under the action of
external forces, and with the aid of molds, redistributes and transfers the volume of metal to form
the required parts or blanks. The cold heading process is most suitable for producing standard
fasteners such as bolts, screws, nuts, rivets, and pins.etc

Hexagonal Metal Lock Nuts, also known as hex lock nuts or distorted thread lock nuts, are a type of fastener designed to resist loosening under vibration and torque. Here’s a detailed description:

Features:

1. Hexagonal Shape – Six-sided (hex) design for easy tightening and loosening with standard wrenches or sockets.

2. Locking Mechanism – Typically has a deformed (elliptical or offset) top section or a nylon insert to create friction against the bolt threads, preventing self-loosening.

   • Nylon Insert Lock Nuts (Nyloc) – Features a nylon collar that grips the bolt threads.

   • All-Metal Lock Nuts – Uses distorted threads or a crimped top for a tight fit.

3. Material – Made from durable metals like stainless steel, carbon steel, or brass, often with corrosion-resistant coatings (e.g., zinc plating).

4. Thread Type – Metric or imperial threads to match corresponding bolts/screws.

Applications:

• Automotive and machinery (high-vibration environments).

• Aerospace, construction, and industrial equipment.

• Electrical and plumbing installations.

• Hexagonal Metal Lock Nuts

Advantages:

• Vibration Resistance – Stays secure in dynamic applications.

• Durability – Metal construction withstands high temperatures (unlike nylon inserts).

• Wide Compatibility – Works with standard hex tools.

Common Types:

• Nyloc Nuts – Nylon-ring lock nuts.

• Top Lock Nuts – All-metal with a conical top.

• Stover (One-Way) Nuts – Oval-shaped crimped metal for permanent locking.