1/4-20 x 1/8 Half Dog Point Alloy Steel Socket Set Screw is selected for components that need repeatable location through a flat-ended cylindrical tip.
Because the tip is blunt and cylindrical, it can locate in a prepared hole or keyway without the surface penetration associated with cone or cup styles.
Alloy steel construction belongs with set screw requirements where the design depends on the specified material and dog-style pilot geometry.
Typical review areas for 1/4-20 x 1/8 include machine controls, stops, and register features and brackets, stops, and parts with prepared receiving features where the blunt pilot is part of the assembly fit.
Thread arithmetic for 1/4-20: 20 TPI in the UNC series; compare the 1/8 in. length with tapped depth and pilot reach. For short-pilot replacements, confirm the receiving feature before changing to another point family. Cold Headers can quote this half dog family by thread, length, alloy steel material, and pilot style.
