5/8-11 x 7/8 is a square head set screw used where an open wrench or socket can access the head and point style must be specified at order.

Typical applications include couplings and collars in heavy service where point style is part of the assembly design. Because point style changes the mating contact, buyers should specify Half Dog, Full Dog, Cone, Oval, or Flat with the size. Flat points bear against a machined flat without intentional penetration into the mating surface.

Cold Headers brings long socket and set screw experience to older machine platforms where square-head hardware is still specified. The family runs UNC coarse thread throughout, the traditional square-head series. Socket set screw families provide the internal-drive alternative where square-head projection or wrench swing will not 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: 7/8 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.