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5/8-11 x 4 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. This family is ordered as one size across five point choices: Half Dog, Full Dog, Cone, Oval, and Flat. External wrench access is useful when an internal socket recess would be hard to keep clear.

Cold Headers keeps the record focused on usable engineering details so buyers can compare the callout against drawings and service notes. Review the selected point, wrench clearance, and mating feature before substitution. Flat points bear against a machined flat without intentional penetration into the mating surface.

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: 4 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.

Unit of Measure

Specifications

Brands

 N/A Cold Headers, Inc.

Diameter

 N/A 5/8 in

Length

 N/A 4 1/2 in

Weight

 N/A 29.72 lb

Type

 N/A 1/2 Dog Cone Flat Full Dog Odd Point Oval

Material

 N/A Carbon Steel

Quantity

 N/A 10

Package Type

 N/A Box

Search

 N/A SHSS.5/8.4 1/2

Note

Note

 N/A Less Than Package Quantity Specified Plus 25%.

5/16-18 x 1/2 NO longer available in Full Dog Points.