HETAI manufactures custom Knurled Bushings for a wide range of mechanical, industrial, electronic, and precision assembly applications. As an experienced manufacturer of custom fasteners, special hardware, and precision machined components, HETAI can produce Knurled Bushings according to customer drawings, samples, dimensions, materials, and application requirements.

A Knurled Bushing is a cylindrical mechanical component featuring a knurled outer surface and an internal bore. The knurled pattern provides additional grip and helps prevent the bushing from rotating or moving after installation. Depending on the design and application, a Knurled Bushing can be installed by press fitting, interference fitting, insertion into a molded component, or another suitable assembly method.
What Are Knurled Bushings Used For?
Knurled Bushings are commonly used when a secure mechanical connection is required between a bushing and its surrounding component. The knurled exterior creates mechanical interference with the mating material, helping improve retention and rotational resistance.
Typical applications include plastic assemblies, electronic equipment, electrical products, automotive components, industrial machinery, control panels, enclosures, and precision mechanical assemblies. They can also be used as spacers, alignment components, mounting inserts, or structural support elements.
For plastic components, a Knurled Bushing can be installed into a preformed or molded hole. The knurled exterior helps lock the bushing in place, while the internal bore provides a precise location for a screw, shaft, pin, or other component.
Custom Knurled Bushing Manufacturing
Standard bushings may not always meet the dimensional or functional requirements of a particular assembly. HETAI therefore provides custom Knurled Bushings designed according to the customer’s specific requirements.
Depending on the application, HETAI can customize the outer diameter, inner diameter, overall length, knurl pattern, knurl pitch, knurl depth, chamfer, shoulder, groove, and other critical dimensions. The internal bore can also be manufactured as a plain hole, threaded hole, or another required configuration.
Different knurling patterns can be selected according to the required retention and installation method. The bushing geometry can also be optimized for press fitting, molded-in applications, or other assembly processes.
Materials and Surface Finishes
HETAI can manufacture custom Knurled Bushings from a variety of engineering materials. Common options include carbon steel, stainless steel, brass, aluminum, and alloy steel. Material selection depends on factors such as mechanical strength, corrosion resistance, electrical conductivity, weight, operating temperature, and application environment.
Surface treatments can also be provided according to the customer’s requirements. Depending on the material and application, available options may include plating, passivation, oxidation, or other suitable surface treatments to improve corrosion resistance, appearance, or service life.
Precision Manufacturing by HETAI
HETAI uses suitable manufacturing processes according to the design, material, dimensions, and production volume of each Knurled Bushing. Depending on the requirements, production may involve CNC turning, automatic turning, knurling, drilling, tapping, milling, grinding, and secondary finishing operations.
During production, important dimensions such as outer diameter, inner diameter, overall length, knurl dimensions, concentricity, and tolerances can be inspected according to customer drawings and technical specifications.
HETAI has been manufacturing custom hardware components since 2001. Our capabilities allow us to support both prototype development and larger-volume production of customized components.
Custom Knurled Bushings Made to Your Requirements
Every mechanical assembly can have different dimensional and performance requirements. HETAI can manufacture Knurled Bushings based on 2D drawings, 3D models, samples, specifications, or application requirements.
Whether you need a small precision bushing for an electronic assembly or a larger component for industrial equipment, HETAI can develop a suitable manufacturing solution based on your design.
If you are looking for a reliable manufacturer of custom Knurled Bushings, send HETAI your drawings, samples, or technical specifications. Our team can manufacture Knurled Bushings with customized dimensions, materials, knurling patterns, internal configurations, and surface finishes to meet your specific application requirements.









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