New GN 421 Hollow Knurled Knobs Come with Partially Protruding Steel Insert

Press Release Summary:

  • Available with Nylon plastic with heat resistance of 230°F and offered with steel, zinc plated, blue passivated and molded-in threaded stud
  • Suitable for applications in packaging, medical, printing, woodworking, lighting and computer periphery industries
  • Used for clamping, adjusting and securing applications

Original Press Release:

JW Winco Offers Expanded Line of Hollow Knurled Knobs Nylon Plastic, With Steel or Stainless Steel Threaded Stud

NEW BERLIN, WI – JW Winco, Inc., A Ganter Company, a leading supplier of standard industrial machine components, announced it has expanded its line of GN 421 Hollow Knurled Knobs Nylon Plastic, With Steel or Stainless Steel Threaded Stud.

The GN 421 Hollow Knurled Knobs have a variety of applications, including clamping, adjusting, and securing. “On clamping operations, the partially protruding steel insert prevents chipping of the plastic,” said John Winkler, CEO, Office of the President at JW Winco.

The nylon plastic has a maximum heat resistance of 230 °F (110 °C). The plastic is black and smooth with a glossy finish, while the threaded stud is steel, zinc plated, blue passivated, and molded-in. The knobs are available in other colors upon request.

Hollow Knurled Knobs are appropriate for applications within the Packaging, Medical, Printing, Woodworking, Lighting and Computer Periphery industries. JW Winco also has multiple variations of the Knurled Knob like the GN 420 Hollow Knurled Knobs, with Tapped Through Steel or Stainless Steel InsertGN 421.10 Hollow Knurled Knobs, with Brass or Plastic TipGN 421.11 Hollow Knurled Knobs, with Ball End, and GN 421.12 Hollow Knurled Knobs, with Ball End and Swivel Thrust Pad.

JW Winco is a manufacturer/distributor of inch and metric standard parts. JW Winco offers an extensive selection of plastic, steel and stainless steel adjustable levers, cabinet U-handles, hinges and locking mechanisms, revolving and retractable handles, hand wheels, hand cranks, tube connection and conveyor components, construction tubing, shock absorption mounts, leveling mounts, hand knobs, spring, ball and indexing plungers, jig, fixture and fastening components, retaining magnet assemblies, toggle clamps, casters and wheels, universal joints, oil sight glasses, and metric tools for the industrial and commercial equipment industries. JW Winco’s new website, with improved 3D CAD and online buying, is viewable at

JW Winco, which is ISO 9001:2015 certified, is located in New Berlin, Wisconsin, with a brand office in Mexico and a sales location in Canada. For more information, contact JW Winco at 800-877-8351, by fax at 800-472-0670, on the Web at, and via e-mail at


Dave Amoroso

Vice President

O: 414.354.0200x108

M: 414.788.4913

F: 414.354.5317

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