4-40 x 3/4 Half Dog Point Alloy Steel Socket Set Screw belongs in assemblies where the set screw tip acts as a locating feature rather than only a friction point.

The shortened pilot can help align or retain parts while reducing projection beyond the receiving hole, slot, or keyway.

This family is suited to industrial mechanical assemblies where a steel half dog point screw is part of the locating method.

Typical review areas for 4-40 x 3/4 include maintenance bins, equipment rebuilds, and point-style controlled sourcing and couplings, handles, collars, and shaft-mounted accessories where the blunt pilot is part of the assembly fit.

Thread arithmetic for 4-40: 40 TPI in the UNC series; compare the 3/4 in. length with tapped depth and pilot reach. For retrofit work, compare the end style against the original part before treating it as a generic set screw. Cold Headers works with socket fastener requirements where pilot shape affects fit and ordering accuracy.

Technical Highlights

• Point Style: Half Dog Point
• Material: Alloy Steel
• Thread Size: 4-40
• Length: 3/4 in.
• Thread Series: UNC
• Threads Per Inch: 40
• Drive Type: Internal Hex