Knurling

A reliable source for Screw Machine Product information and leading Screw Machine Product Companies & Manufacturers.

Best suited for softer metals such as aluminum and standard grade steel, frequently knurled objects include tool handles, metal flashlights, knurled nuts, knurled control knobs, barbell bars, metal shafts, knurled winged screws, mechanical pencils and metal tubes. Knurling is particularly useful when it comes to assembling a high precision part into a hole in a low precision part when the hole does not closely match the diameter of the high precision part. Read More…

Knurling Knurling is a manufacturing process in which a rough, patterned texture is created on the surface of a metal in order to provide a grip as well as for aesthetic purposes. Accomplished through the use of specialized CNC turning tools, knurled patterns are visually appealing and are often more easily gripped than smooth surfaces.

Leading Manufacturers

Reed City, MI  |  231-832-2356

H & R Screw Machine Products-ISO 9001-certified manufacturer of high-volume screw machine products for many industries. We also produce CNC turned parts and provide machining of customer supplied castings, forgings and stampings. Our multiple-spindle screw machines have capacities up to 2 1/4" diameter. With 100’s of years of combined employee industry experience, choose H & R at www.hrscrew.com!

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H & R Screw Machine Products, Inc. $$$

Brentwood, NY  |  800-238-3929

It is Thuro’s mission to be the leading choice for screw machine parts, and to offer our products at the highest quality and the lowest cost. Our team members dedicate themselves to ensuring that our customers receive the perfect part on time, every time. We call this Thuro TruPerfection&trade. Visit our website today to learn more about what we may be able to do for you!

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Thuro Metal Products, Inc. $$$

Calabasas, CA  |  866-317-0208

Pacific West America, Inc. offers a wide variety of products and services including precision turning. We use Swiss CNC Turning for our more intricate parts. We use a variety of materials such as, aluminum, steel, brass, among others. Here at PacificWest we believe in high quality products! We believe producing what our customers need and want for their project, so please stop at our site today and send us your plans.

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Pacific West America, Inc. $$$

Hillside, NJ  |  800-826-9985

H&H Swiss begins in 1945, when we first opened our doors as a family-owned firm growing over our long history into a diverse company specializing in precision turned components. H&H Swiss has evolved into an organization that continues to reflect our philosophy of manufacturing the highest quality screw machine parts through an unmatched level of customer service and partnership.

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H & H Swiss Screw Machine Products Inc. $$$

Minneapolis, MN  |  888-483-9924

For over 40 years, Ardel Engineering provides CNC machining, offering customers the quality and delivery service they can count on. of machining excellence of most metals, plastics, and engineering grade materials AE uses the best machining technology available to provide its customers with production CNC milling, Swiss Machining and inspection. We have ISO 9001:2008 and ISO 13485 certification.

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Ardel Engineering and Manufacturing $$$

Nokomis, FL  |  800-330-2618

Starting business in 1963, Weber Manufacturing and Supplies has been offering a wide range of turned parts in the .060" to 2 1/2" range. The screw machine products we've produced include bushings, connectors, couplings, fasteners, fittings and more.

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Weber Manufacturing and Supplies, Inc. $$$
placeholder image H & R Screw Machine Products, Inc. Thuro Metal Products, Inc. Pacific West America, Inc. H & H Swiss Screw Machine Products Inc. Ardel Engineering and Manufacturing Weber Manufacturing and Supplies, Inc.

The knurled pattern on the high precision part presses into the knurled walls of the low precision part and forges a connection that otherwise would not have been. In addition, knurling offers extensive manufacturing and repair applications that allow knurling companies to serve diverse industries such as electronics, automotive, construction, aerospace, telecommunications, fitness equipment and marine.

Most often conducted on a lathe, knurling is commonly achieved through the same automatic-feed mechanisms that are used to form screw machine products. Knurling tools are used in conjunction with the lathe and enable the embossing of the pattern. Embossing is the process of creating a three-dimensional design on a part or material.

There are four general knurling patterns: annular rings, straight, angular and diamond knurl. These knurling patterns can be used independently or in a combination. Annular rings are most often used when using a plastic mating component. While annular rings allow for easy mating, the ridges can make the components difficult to pull apart. A straight knurling pattern is also referred to as a linear knurl pattern and consists of a series of linear straight ridges. The straight ridges can also be formed into helical grooves referred to as a helical knurling pattern.

Angular knurling consists of straight ridges in an angular direction and is typically used in order to give extra traction to an external handle or other connective piece. The most common type of knurling pattern for hand grips is diamond knurl because it creates the most traction between a user's hand and the handle. A diamond knurl consists of a criss-cross pattern of ridges.

Knurling Informational Video