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1-8 x 1 3/4 Cup Point Square Head Set Screw is a square-drive, cup-point set screw for assemblies where the head itself provides the wrenching surface. The square flats also make the part recognizable on older assemblies that were designed before hex-socket set screws became common.

Industrial controls with exposed mechanical adjustments can use square-head set screws where a protruding wrench head is intentionally specified.

Fine-thread and longer square-head sizes are a hard-to-find lane, so exact thread and length identification matters before sourcing. 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: 1-8 (Class 2A)
  • Length: 1 3/4 in.
  • Width Across Flats: 1.000 max / 0.974 min in.
  • Width Across Corners: 1.414 max / 1.337 min in.
  • Head Height: 0.774 max / 0.726 min in.
  • Head Radius: 2.50 min in.
  • Neck Relief: 0.838 max / 0.823 min dia., 0.250 min width, 0.081 min fillet in.
  • Cup Point Diameter: 0.609 max / 0.579 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 1-8

Length

 N/A 1 3/4 in

Material

 N/A Carbon Steel

Shape

 N/A Square

Quantity

 N/A 10

Package Type

 N/A Box

Search

 N/A CPSHSS.1-8.1 3/4

Note

Note

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

1 1/8" Diameter and Larger also Stocked Prices on Application.