1/4-28 x 2 1/2 Half Dog Point Alloy Steel Socket Set Screw supports shaft-mounted components that use a dog-style tip to register position.

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 1/4-28 x 2 1/2 include shaft collars, gear hubs, and pulley positioning and conveyor hardware, packaging machinery, and production equipment where the blunt pilot is part of the assembly fit.

Thread arithmetic for 1/4-28: 28 TPI in the UNF series; compare the 2 1/2 in. length with tapped depth and pilot reach. Review whether the mating hole, slot, or keyway matches the point style before approving a substitute. Cold Headers assists with exact-size sourcing when the shortened pilot is part of the purchase requirement.

Technical Highlights

• Point Style: Half Dog Point
• Material: Alloy Steel
• Thread Size: 1/4-28
• Length: 2 1/2 in.
• Thread Series: UNF
• Threads Per Inch: 28
• Drive Type: Internal Hex