M4 x 12mm Knurled Thumb Screw (DIN 464) | A1 Stainless Steel

Product code: THUM464-M4-12-A1
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M4 x 12mm Knurled Thumb Screw (DIN 464) | A1 Stainless Steel
M4 x 12mm Knurled Thumb Screw (DIN 464) | A1 Stainless Steel
M4 x 12mm Knurled Thumb Screw (DIN 464) | A1 Stainless Steel
M4 x 12mm Knurled Thumb Screw (DIN 464) | A1 Stainless Steel
M4 x 12mm Knurled Thumb Screw (DIN 464) | A1 Stainless Steel
M4 x 12mm Knurled Thumb Screw (DIN 464) | A1 Stainless Steel
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Product Specification
Thread Size M4
Thread Length 12mm
Pitch 0.70mm
Head Diameter 16.35mm
Head Height 9.5mm
Knurled Height 3.5mm
Shank Diameter 8.0mm
Standard DIN 464
Material A1 Stainless Steel

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M4 x 12mm Knurled Thumb Screw | DIN 464 | A1 Stainless Steel

For jigs, fixtures and workshop tooling, this M4 x 12mm knurled thumb screw offers convenient hand tightening without sacrificing a defined metric thread. The A1 Stainless Steel construction supports durable repeated use while the knurled circumference makes the head easier to grip during adjustment. These M4 Thumb Screws feature a shoulder beneath the head, providing stand-off from the mating surface for use with compatible panel or spring arrangements.

What Are DIN 464 Knurled Thumb Screws?

DIN 464 Knurled Thumb Screws are hand-operated metric fasteners with a large round head and textured knurled edge. The knurl improves finger grip so the screw can be tightened or loosened without tools which is useful on parts that need regular access, clamping or adjustment.

Common Applications

  • Jigs and Fixtures: Provides quick manual clamping or repositioning on workshop tooling and production fixtures.
  • Adjustment Points: Provides a hand-operated threaded fastener for setting positions, stops or clearances.
  • Workholding: Can be used for manual clamping in suitable fixtures where fast changes are required.
  • Levelling and Positioning: Can be used in suitable threaded mechanisms where hand adjustment of position or pressure is required.

M4 x 12mm DIN 464 Knurled Thumb Screw Dimensions

  • Thread Size: M4
  • Thread Length: 12mm
  • Pitch: 0.70mm
  • Head Diameter: 16.35mm
  • Head Height: 9.5mm
  • Knurled Height: 3.5mm
  • Shank Diameter: 8.0mm
  • Material: A1 Stainless Steel
  • Standard: DIN 464

Key Benefits

  • 0.70mm metric pitch matches the specified DIN 464 thread for this size.
  • 3.5mm knurled height provides the textured gripping section around the head circumference.
  • DIN 464 manufacture provides a recognised dimensional standard for this knurled thumb screw style.

See our wider Stainless Steel Knurled Thumb Screw range for more DIN 464 dimensions. You can compare this DIN 464 design with other hand-tightened products in our wider Knurled Fasteners range. For product-selection support, speak with our team on 01233 713581.

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