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1/2-20 x 3 Cup Point Square Head Set Screw fits older and current equipment that relies on square flats for set screw adjustment. The cup point creates localized contact with the mating surface, while the external flats give the installer a direct wrenching surface.

Equipment rebuilds can require fine-thread square heads when the original adjustment range depends on the specified thread pitch.

This family includes uncommon square-head lengths, making the exact size useful for replacement searches and legacy drawings. Review the thread, length, square-head dimensions, and cup point diameter before substituting another set screw style.

Technical Highlights

  • Head: Square, wrench-driven; flats match nominal size
  • Point: Cup Point
  • Thread Size: 1/2-20 (Class 2A)
  • Length: 3 in.
  • Width Across Flats: 0.500 max / 0.484 min in.
  • Width Across Corners: 0.707 max / 0.665 min in.
  • Head Height: 0.389 max / 0.361 min in.
  • Cup Point Diameter: 0.291 max / 0.270 min in.
  • Material: Carbon Steel, case hardened per ASME B18.6.2 (case hardness 83 HR15 minimum, case depth 0.006 in. minimum)
  • Finish: Plain
  • Dimensional Standard: ASME B18.6.2

Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.

Unit of Measure

Specifications

Brands

 N/A Cold Headers, Inc.

Diameter

 N/A 1/2-20

Length

 N/A 3 in

Material

 N/A Carbon Steel

Shape

 N/A Square

Quantity

 N/A 50

Package Type

 N/A Box

Search

 N/A CPSHSS.1/2-20.3

Note

Note

 N/A Less Than Package Quantity Specified Plus 25%.