3/8-16 x 2 1/4 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.
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: 3/8-16 (Class 2A)
- Length: 2 1/4 in.
- Width Across Flats: 0.375 max / 0.362 min in.
- Width Across Corners: 0.530 max / 0.497 min in.
- Head Height: 0.293 max / 0.270 min in.
- Cup Point Diameter: 0.212 max / 0.194 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.
