3/4-16 x 1 1/4 Cup Point Square Head Set Screw gives maintenance crews a wrench-driven cup point fastener for machinery that still calls out square-head hardware. 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.

Use Cold Headers when the requirement is specific: square head, cup point, carbon steel, Class 2A thread, and the length shown on the drawing. 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: 3/4-16 (Class 2A)
• Length: 1 1/4 in.
• Width Across Flats: 0.750 max / 0.729 min in.
• Width Across Corners: 1.060 max / 1.001 min in.
• Head Height: 0.582 max / 0.544 min in.
• Cup Point Diameter: 0.450 max / 0.425 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.