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Knurling

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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.
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Leading Manufacturers

Upland, CA  |  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.

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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.

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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.

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Pacific West America, Inc. $$$

Livonia, MI  |  800-734-8596

JC Gibbons Manufacturing Inc. is a USA-made screw machine product manufacturer. We strive to make life-ling customer relationships through our high-quality products, competitive pricing, and excellent customer service. JC Gibbons offers a wide range of materials, including steel, aluminum, brass, and stainless steel. We are ISO 9001:2015 registered.

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JC Gibbons Manufacturing Inc. $$$

Clearwater, FL  |  727-443-5764

For over 70 years, MSP Industries has been a leader in the screw machine products industry. Our team of professional’s with more than 20 years of experience guarantee high quality assurance for each product we manufacturer. Our customers work alongside these experts to find or design the product that fits their needs. MSP Industries specializes in high- volume production of screws, sleeves, and adaptors.

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MSP Industries, LLC $$$

Carol Stream, IL  |  888-323-6501

Although Benchmark Fasteners has its own product line, we will make custom screw machine products. Our products include anchors, bolts, cap screws, nuts, pins, rivets, screws, studs, washers and more.

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Benchmark Fasteners, Inc. $$$
placeholder image H & R Screw Machine Products, Inc. Thuro Metal Products, Inc. Pacific West America, Inc. JC Gibbons Manufacturing Inc. MSP Industries, LLC Benchmark Fasteners, 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

 
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