1/2-20 x 1 1/2 Half Dog Point Alloy Steel Socket Set Screw suits compact machinery where a projected pilot is needed but extra length beyond the mating feature is not.
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.
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 1/2-20 x 1 1/2 include couplings, handles, collars, and shaft-mounted accessories and maintenance bins, equipment rebuilds, and point-style controlled sourcing where the blunt pilot is part of the assembly fit.
Thread arithmetic for 1/2-20: 20 TPI in the UNF series; compare the 1 1/2 in. length with tapped depth and pilot reach. Match the thread designation and length together because each affects where the cylindrical tip lands. Cold Headers assists with exact-size sourcing when the shortened pilot is part of the purchase requirement.
