1/4-20 x 1 1/2 Half Dog Point Alloy Steel Socket Set Screw is intended for applications where the blunt pilot aligns the component without pointed surface penetration.

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 1/2 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 1/2 in. length with tapped depth and pilot reach. Confirm that the pilot can enter the feature without bottoming or shifting the retained part. Cold Headers can quote this half dog family by thread, length, alloy steel material, and pilot style.

Technical Highlights

• Point Style: Half Dog Point
• Material: Alloy Steel
• Thread Size: 1/4-20
• Length: 1 1/2 in.
• Thread Series: UNC
• Threads Per Inch: 20
• Drive Type: Internal Hex