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DimcoGray Plastic

 (5 product groups)

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4 Arm Prong Knobs

Lobed knobs, also called clamping knobs, have a scalloped edge with four grip points to allow for maximum grip and comfort, even while wearing gloves.

These durable lobed knobs are impact- and chemical-resistant and provide a neat appearance for finished applications that require precision adjustments.

Reid Supply has a wide range of 4-lobed knobs, from plastic knobs to stainless steel and iron in a variety of thread sizes and mounting types.

Learn more about what solutions exist for your application in our article on selecting the right knobs and handles.

Ball Knobs

Ball knobs can be used to simply grip an appliance or provide ergonomic clamping pressure in a variety of ways. Ball knobs are commonly found on machine tools, jigs, fixtures, and control levers, or used as replacement parts to have on hand.

Our ball knobs come in a variety of shapes and materials from leading suppliers of industrial knobs, including DimcoGray, Elesa, and Kipp.

Shop for ball knobs online or in our digital catalog to ensure you get the exact part you’re after.

Lobed Knobs

Sometimes referred to as fluted knobs, lobed knobs with 10 lobes bridge a valuable gap between lobed knobs and knurled knobs by bringing wider grips than a typical knurled knob, while increasing the number of lobes over much wider gaps in knobs with fewer lobes.

They are ideal in setups where a "soft" grip is desired for hand cranking on equipment or workpieces.

Not sure whether a knob or handle is appropriate for your setup?

Check out our Engineer Guide to Knobs, Handles, and Handwheels to find the material and style of knob or handle that works best for your project’s specifications.

Tapered Knobs

Tapered knobs are commonly found on machine tools, jigs, fixtures, and control levers, sometimes preferred due to the shape of the apparatus or end products.

Tapered knobs come in female and male threaded insert as well as press-on applications. We carry knobs by DimcoGray, Kipp, and Rogan so you can always find exactly the product you're looking for.

Reid Supply has a complete library of industrial tapered knobs, including these styles:


Learn more about the different types of knobs available for your project’s specifications by reading our article on Selecting the Right Knobs and Handles.

Wing Knobs

Wing knobs are designed to give good leverage with minimal grip strength, making them ideal for applications that require frequent tightening and loosening, or in more precision applications.

These knobs do not require tools and can be easily adjusted using only a thumb and forefinger, similar to thumb screw knobs, but with an added arm.

We carry wing knobs in a wide variety of thread sizes from 1-inch wing knobs to 3-inch wing knobs, ensuring you'll find exactly what you need by the manufacturer you trust.