NYLON LOCK NUTS

Our Nylon Lock Nuts, also commonly known as Nyloc Nuts or Nylon Insert Lock Nuts, are designed for fastening applications where conventional nuts may be susceptible to loosening under vibration, movement, or repeated mechanical loading. Featuring an integrated nylon insert at the top of the nut, the design creates controlled interference with the mating bolt thread during installation. This additional friction generates prevailing torque that helps resist unintended rotation of the nut, providing a more secure connection without requiring a separate locking washer or external locking device in suitable applications. This makes Nylon Lock Nuts a practical choice for automotive components, machinery, industrial equipment, electrical products, mechanical assemblies, and general-purpose fastening systems where maintaining joint integrity is important.

Integrated Nylon Insert for Effective Thread Locking

The key functional advantage of a Nylon Lock Nut is its built-in locking element. As the bolt thread passes through the nylon insert, the insert deforms around the thread and creates additional resistance to rotation. Unlike conventional nuts, which rely primarily on the clamping force of the joint, Nylon Lock Nuts introduce an additional prevailing-torque mechanism that helps prevent the nut from freely rotating under vibration and dynamic conditions. Because the locking element is integrated into the nut, there is no need to separately handle a locking washer in applications where the nylon insert provides the required anti-loosening function. This can simplify assembly and reduce the number of individual components in production.

1010, 1035 & 1045 Steel Options

Our Nylon Lock Nuts are available in 1010, 1035, and 1045 carbon steel, providing different material options for general-purpose and industrial fastening requirements. Depending on the applicable specification, steel nuts are available in ISO 898-2 Class 6, Class 8, and Class 10 for metric applications, with corresponding SAE J995 Grade 2, Grade 5, and Grade 8 options for inch-based fastening systems. This range allows buyers to select an appropriate mechanical performance level and match the nut with the corresponding bolt grade. Proper nut-and-bolt grade compatibility remains essential when designing a complete bolted joint, particularly where significant loads or dynamic forces are involved.

Brass Option for Non-Ferrous Applications

In addition to carbon steel, Brass is available as a material option for applications where a non-ferrous fastening material is preferred. Brass can provide useful characteristics such as corrosion resistance, electrical conductivity, attractive appearance, and reduced magnetic response, depending on the specific alloy and application. It can therefore be considered for suitable electrical, instrumentation, decorative, and general hardware applications. Because Brass has different mechanical characteristics from carbon steel, steel strength classifications such as ISO 898-2 or SAE J995 should not automatically be applied to Brass products; material selection should instead be based on the specific brass specification and actual service requirements.

DIN 985 & ASME B18.16.6 Standards

Our Nylon Lock Nuts are manufactured according to recognized international standards, including DIN 985 and ASME B18.16.6, supporting both metric and inch-based fastening requirements. Standardized dimensions make it easier for manufacturers and distributors to match the nuts with compatible bolts and threaded components while simplifying product specification and replacement sourcing.

Black & Zinc Plated Finishes

Our Nylon Lock Nuts are available in Black and Zinc Plated (ZP) finishes. Finish selection can be coordinated with the surrounding environment and the corrosion protection requirements of the complete assembly.

Designed for Vibration & Dynamic Applications

Nylon Lock Nuts are particularly valuable in assemblies exposed to vibration, oscillation, repeated movement, or dynamic loading. Typical applications include automotive components, machinery, industrial equipment, electrical equipment, mechanical structures, and general industrial assemblies. By adding prevailing torque to the threaded connection, the nylon insert helps reduce the tendency of the nut to rotate loose during service. However, Nylon Lock Nuts should be selected with the operating environment in mind: because the locking element is nylon, service temperature, chemical exposure, and installation conditions should be evaluated before use. For applications involving temperatures beyond the suitable range of the nylon insert, an all-metal locking nut may be a more appropriate solution.

Efficient Alternative to Separate Locking Components

For manufacturers operating high-volume assembly lines, component simplicity can have a direct impact on production efficiency. A Nylon Lock Nut integrates the locking function directly into the nut, potentially eliminating the need for a separate locking washer or additional locking component where the application permits. This can reduce the number of loose parts handled during assembly and simplify inventory management. The standard hexagonal exterior also allows installation using conventional wrenching tools, making Nylon Lock Nuts easy to integrate into established production processes.

A Flexible Sourcing Solution for Industrial Buyers

With 1010, 1035, and 1045 carbon steel, Brass material options, DIN 985 and ASME B18.16.6 standards, M3–M72 and #10–3" sizes, ISO 898-2 Class 6/8/10 and SAE J995 Grade 2/5/8 options for applicable steel products, and Black/ZP finishes, our Nylon Lock Nuts provide a flexible sourcing solution for OEM manufacturers, automotive suppliers, machinery producers, distributors, and industrial procurement teams.