3/4-10 x 3 3/4 is a case hardened low carbon steel square head set screw for machinery that uses wrench-driven adjustment or retention.

Typical applications include crusher and screen plants that use rugged retaining screws around shafts and collars. The row represents a square-head size, while the point selection is made from 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 supports square-head set screw sourcing with a catalog organized around exact size, standard, and point selection. Review the selected point, wrench clearance, and mating feature before substitution. For cup point square heads, use the separate Cup Point Square Head Set Screws category rather than this five-point family.

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: 3/4-10 (UNC)
• Thread Fit: 2A (per ASME B18.6.2)
• Length: 3 3/4 in.
• Width Across Flats (F): 0.750 / 0.729 in. (max/min)
• Across Corners (G): 1.060 / 1.001 in. (max/min)
• Head Height (H): 0.582 / 0.544 in. (max/min)
• Dimensional Standard: ASME B18.6.2

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