Leading Knurling 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.

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.

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

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.

Thuro Metal Products, Inc. $$$

Based out of California, Pacific West America, Inc. (PWA) is a metal fabrication company. We focus most of our efforts on swiss screw machining, stampings, and precision parts, and our electronics division makes products such as cable assemblies, connectors, circuit boards and membrane switches. We create our products using a variety of CNC controlled machines, processes and robotics. Such...

Pacific West America, Inc. $$$

ISO Certified Precision Multi-Spindle Screw machining since 1905 with over 40 Davenports, CNC & Swiss machines. Made in the USA. We specialize in precision machined components such as screw machined nuts, threaded inserts, compression limiters, washers, bushings, fittings, pins, spacers, shafts…Low to high volume production with design support. The top industries we provide to are automotive,...

SEGEPO-FSM, Inc. $$$

At M.A.R.'s Engineering, we take great pride in our ability to deliver high-quality screw machine products. Our screw machines are capable of producing complex components with utmost precision and efficiency. Whether it's small parts or intricate assemblies, we have the expertise and equipment to meet your specific requirements. With a wide range of materials and finishes available, we can...

M.A.R.'s Engineering Company Inc. $$$

At GrovTec Machining, we pride ourselves on being the go-to destination for precision turned components and screw machine products. When it comes to fulfilling your machining needs, you need not look any further than our state-of-the-art screw machine shop. Our dedicated team of experienced machinists and cutting-edge equipment allow us to tackle projects of all sizes and complexities.

GrovTec Machining $$$

As ATD Precision, we specialize in providing high-quality screw machine products to meet the diverse needs of our customers across various industries. With years of experience and expertise in precision machining, we offer a wide range of services tailored to deliver precise and reliable components. Our team of skilled machinists and engineers utilizes state-of-the-art equipment and advanced...

ATD Precision $$$

C.E. Holden, Inc. has been producing the finest quality screw machine products since 1950. Over the years, we have provided our customers in Pittsburgh and worldwide with a tremendous assortment of parts and components including specialty screw machine work. The capacity of our screw machines is from 1/8 to 1 inch round and up to 4 inches long, profiled bar stock up to 1 inch in diameter.

C.E. Holden, Inc. $$$
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placeholder image H & R Screw Machine Products, Inc. Thuro Metal Products, Inc. Pacific West America, Inc. SEGEPO-FSM, Inc. M.A.R.'s Engineering Company Inc. GrovTec Machining ATD Precision C.E. Holden, 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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