1/4-20 x 1 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. Point choice is part of the order detail, with Half Dog, Full Dog, Cone, Oval, and Flat handled under this family. Flat points bear against a machined flat without intentional penetration into the mating surface.

Cold Headers keeps the record focused on usable engineering details so buyers can compare the callout against drawings and service notes. The family runs UNC coarse thread throughout, the traditional square-head series. When the assembly cannot accept an exposed square head, compare headless socket set screw families before substituting.

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: 1/4-20 (UNC)
• Thread Fit: 2A (per ASME B18.6.2)
• Length: 1 in.
• Width Across Flats (F): 0.250 / 0.241 in. (max/min)
• Across Corners (G): 0.354 / 0.331 in. (max/min)
• Head Height (H): 0.196 / 0.178 in. (max/min)
• Dimensional Standard: ASME B18.6.2

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