For size searches that do not begin with a single catalog length, 3/8-16 routes the buyer to the square head set screw family for quotation.

Typical applications include crusher and screen plants that use rugged retaining screws around shafts and collars. 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.

For hard-to-find square-head requirements, Cold Headers can help confirm the size and point style before quote work begins. Review the selected point, wrench clearance, and mating feature before substitution. Cup point slotted set screws are the related screwdriver-driven option when flush-fitting access is preferred.

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: 3/8-16 (UNC)
• Thread Fit: 2A (per ASME B18.6.2)
• Width Across Flats (F): 0.375 / 0.362 in. (max/min)
• Across Corners (G): 0.530 / 0.497 in. (max/min)
• Head Height (H): 0.293 / 0.270 in. (max/min)
• Head Radius (W): 0.94 in. (min)
• Neck Relief: (K) 0.294 / 0.279 in. dia. (max/min), (U) 0.125 in. min width, (S) 0.041 in. min fillet
• Dimensional Standard: ASME B18.6.2

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