For line-shaft hardware, collars, and similar mechanical locations, 3/8-16 x 1 1/2 gives buyers the square-head set screw style named on many older drawings.
Typical applications include older machine tools that were designed around wrench-driven set screws. 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.
Since 1962, Cold Headers has helped industrial buyers identify specialty set screws by thread, length, head style, and point requirement. The family runs UNC coarse thread throughout, the traditional square-head series. Cone points are typically chosen for a spot-drilled seat when a more fixed location is desired.
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)
- Length: 1 1/2 in.
- 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)
- Dimensional Standard: ASME B18.6.2
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
