5/8-11 x 1/2 gives maintenance teams a classic square-head set screw with a full UNC callout and a wrench-driven head for heavy mechanical layouts.
Typical applications include pulleys and sheaves on line shafts where the head is intentionally exposed. Point choice is part of the order detail, with Half Dog, Full Dog, Cone, Oval, and Flat handled under this family. Half Dog points register into shallow holes or slots when location matters under load.
Since 1962, Cold Headers has helped industrial buyers identify specialty set screws by thread, length, head style, and point requirement. Review the selected point, wrench clearance, and mating feature before substitution. External wrench access is useful when an internal socket recess would be hard to keep clear.
Technical Highlights
- Head: Square, wrench-driven
- Material: Low Carbon Steel, Case Hardened
- Point Styles: Half Dog, Full Dog, Cone, Oval, Flat (specify at order)
- Thread Size: 5/8-11 (UNC)
- Thread Fit: 2A (per ASME B18.6.2)
- Length: 1/2 in.
- Width Across Flats (F): 0.625 / 0.606 in. (max/min)
- Across Corners (G): 0.884 / 0.833 in. (max/min)
- Head Height (H): 0.485 / 0.452 in. (max/min)
- Dimensional Standard: ASME B18.6.2
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
