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1-8 x 7/8 Cup Point Square Head Set Screw is a case hardened carbon steel set screw built around an external square head instead of a recessed drive. The open square head is useful when a standard wrench is preferred and the drive must stay visible during adjustment.

Sprocket hubs, drive collars, and shaft-mounted handles are natural locations for a cup point that bears against a mating surface. For square-head specifications that call for half dog, full dog, flat, cone, or oval points, review the broader Square Head Set Screws family.

When a machine still calls out square-head hardware, the exact-size listing helps avoid replacing a legacy part with the wrong drive style. The thread, length, across-flats size, head height, and cup point diameter should be checked against the print before purchase.

Technical Highlights

  • Head: Square, wrench-driven; flats match nominal size
  • Point: Cup Point
  • Thread Size: 1-8 (Class 2A)
  • Length: 7/8 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.
  • 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 7/8 in

Material

 N/A Carbon Steel

Shape

 N/A Square

Quantity

 N/A 10

Package Type

 N/A Box

Search

 N/A CPSHSS.1-8.7/8

Note

Note

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

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