For hard-working shafts, collars, and adjustments, the 1-8 x 1/2 Cup Point Square Head Set Screw provides a cup point with a four-flat wrench head. This pattern remains valuable on equipment where operators repeatedly loosen, reset, and tighten the same fastener.

Outdoor and quarry equipment may use the open head because mud, dust, and grease are easier to clear from flats than from a recess. Because a square head protrudes and rotates with the shaft, exposed rotating assemblies near personnel may call for a guarded headless set screw instead.

Cold Headers supports industrial distributors, repair teams, and OEM buyers who need a precise thread, length, and point style without substituting geometry. 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: 1/2 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.