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…
Leading Manufacturers
H & R Screw Machine Products, Inc.
Upland, CA | 231-832-2356H & 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.
Thuro Metal Products, Inc.
Brentwood, NY | 800-238-3929It 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.
Pacific West America, Inc.
Calabasas, CA | 866-317-0208Pacific 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.
C&M Machine Products Inc.
Hudson, NH | 603-889-1330We will work with a variety of materials in order to provide you with the screw machine products that you can count on to withstand the tests of time to provide a lasting value. Some of these materials include aluminum, steel, brass, plastics as well as many others. Allow us to show you the difference when you work with true professionals. Get in touch with our customer service representatives today to learn more!
Northern Precision Products, Inc.
LeRoy, MI | 231-768-4435Northern Precision Products is a Michigan-based, high-performance screw machine shop that cuts and forms machine-grade metal alloys into revolved (2-axis) parts. As a mid- to large-volume component manufacturer, we partner with Tier One and Two suppliers to OEM’s. Our company is ISO/TS (2015) and IATF (2016) certified and have been producing high-quality precision-machined components for over 30 years. Could you use the NPP Supply Advantage? Visit our website or contact us today!
Micro-Matics, LLC
Fridley, MN | 763-780-2700Since 1973, Micro-Matics, one of the largest Escomatic shops in the Midwest, has been manufacturing CNC Swiss precision screw machine products including many kinds of contacts & pins, ground shafts, hardened bushings, rivets, screws, spacers and other custom parts for the medical, dental, aerospace, commercial, defense, computer, telecommunications and automotive industries.
Knurling - H & R Screw Machine Products, 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.
