Where a bill of material calls for a wrench-driven cup point screw, the 5/8-11 x 3/8 Cup Point Square Head Set Screw keeps the size and geometry explicit. It is a practical choice when top-side wrench access is available and a protruding head is acceptable in the design.
Legacy machine rebuilds often need the same square-head geometry to match existing drawings and replacement records. Plain carbon steel is not selected for corrosion resistance; keep parts oiled in service, or ask about stainless square-head options as a non-catalog request.
Cold Headers keeps the catalog language focused on size, geometry, material, and verified dimensions so buyers can compare parts cleanly. 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: 5/8-11 (Class 2A)
- Length: 3/8 in.
- Width Across Flats: 0.625 max / 0.606 min in.
- Width Across Corners: 0.884 max / 0.833 min in.
- Head Height: 0.485 max / 0.452 min in.
- Cup Point Diameter: 0.371 max / 0.347 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.
