3/4-10 x 3 1/2 is built for legacy machinery and industrial assemblies that still specify a square head set screw instead of a headless socket screw.
Typical applications include large adjustment stops, travel-limit hardware, and machine fixtures. Half Dog, Full Dog, Cone, Oval, and Flat points are the ordering paths for this square-head series. Point selection should reflect the shaft feature, acceptable marking, and expected service adjustment.
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. 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: 3/4-10 (UNC)
- Thread Fit: 2A (per ASME B18.6.2)
- Length: 3 1/2 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.
