GN 421.12 Hollow Knurled Knobs Technopolymer Plastic, with Stainless Steel Threaded Stud, with Ball End and Swivel Thrust Pad


Product Family Stainless Steel

Standard parts made of rustproof stainless steel have been designed for use in the food sector, in the chemical industry, for aggressive ambient conditions or for outdoor use.

  • corrosion-resistant
  • precise fit
  • environmentally friendly
Show all Stainless Steel products

Product description


GN 421.12 hollow knurled knobs have a ball end whose diameter is smaller than the core diameter of the thread.
The thrust pad swivels 15° is easily clipped on and taken off. Thrust pads are supplied unmounted.
In clamping applications, the partially protruding steel hub of the knurkled knob prevents chipping of the plastic.


Knurled knob body
Black, smooth, glossy finish

Threaded stud
Stainless Steel, European Standard No. 1.4305 (AISI 303)

Thrust pad
Technopolymer (Polyacetal POM)
  • Temperature resistant up to 194 °F (80 °C)
  • Black, matte

RoHS compliant

Technical drawing

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GN 421.12 Technopolymer Plastic Hollow Knurled Knob, with Stainless Steel Threaded Stud, with Ball End and Swivel Thrust Pad sketch

Part Options / Table

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Dimensions in: Inch | Metric
Stud Lengthd2d3d4d5d6hkl2l3l4
M 6.981.381.
M 81.181.571.97.711.
M 81.181.571.97.831.
M 81.181.571.97.981.
M 81.181.571.971.
M 81.181.571.971.571.
M 101.381.772.17.831.
M 101.381.772.17.981.
M 101.381.772.
M 101.381.772.171.571.

Build & Price

Thread d1
Stud Length l1
Thrust pad diameter d2

Selected Part

Total USD (net)
In stock: 0
Call / Email for Delivery Time
Please note our quantity discounts (USD).
≥ 500$2.12
Weight: 0.022 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351
RoHS compliant: Yes
This article conforms to RoHS, which means it complies with EU Directive 2011/65/EU for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).
All Prices are in US Dollars. Taxes Not Included.

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