When the required length is not represented by a standard SKU row, 12-24 gives purchasing a diameter-level path into the square-head category.

Typical applications include construction machinery where large wrench flats are easier to clean and grip. Specify the point style at order; the same size can be supplied as Half Dog, Full Dog, Cone, Oval, or Flat. Point selection should reflect the shaft feature, acceptable marking, and expected service adjustment.

Availability-row diameters and unusually long lengths are handled as quote-driven square-head requirements by Cold Headers. Review the selected point, wrench clearance, and mating feature before substitution. The square head equals the nominal diameter across flats, giving the wrench size a direct relationship to the screw size.

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: 12-24 (UNC)
• Thread Fit: 2A (per ASME B18.6.2)
• Dimensional Standard: ASME B18.6.2

Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.