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…
H & R Screw Machine Products, Inc.Reed City, 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.$$$
Thuro Metal Products, Inc.Brentwood, NY | 800-238-3929
It is Thuro’s mission to be the leading choice for screw machine parts, and to offer our products at the highest quality and the lowest cost. Our team members dedicate themselves to ensuring that our customers receive the perfect part on time, every time.$$$
Pacific West America, Inc.Calabasas, CA | 866-317-0208
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 processes ensure that our products have all of the qualities our customers require, such as close tolerances, high durability, complex dimensions.$$$
GrovTec MachiningWood Village, OR | 503-557-4689
Since 2006, GrovTec has been designing and manufacturing a high-quality line of gun accessories with contract manufacturing capabilities. With 10 CNC machines, our contract manufacturing capability can match any high-performing company in the Northwest. Our CNC Machining capabilities include CNC Swiss, CNC Lathing, Multi Spindle Screw production, CNC Milling, Single Spindle Screw production, and production of a wide array of mechanical assemblies. Visit our website to find about more about what GrovTec can help you accomplish.$$$
GROOV-PIN CORPLincoln Park, NJ | 973-628-0002
Established in 1926, the Groov-Pin Corporation was founded in the spirit of innovation. We manufactured and distributed original, patented fastener solutions. Today, our product lines include threaded inserts, grooved pins, and precision-turned components engineered for aerospace, defense, agricultural, medical, and power distribution applications.$$$
Alpha Omega Swiss, Inc.Yorba Linda, CA | 714-692-8009
Alpha Omega Swiss is a manufacturer of screw machine parts and products, Swiss screw machine products and turned parts and products. We design quality screw machine products for many industries such as the medical, dental, defense and many more.$$$
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.