Description Type: Pivot Barrel External diameter: 0.250″ Height: 0.425″ Compatible FOR EXAMPLE  with: FKP-PST-312-P       5/16″ PIVOT SCREW – PLAIN FKP-PST-312-DA   5/16″ PIVOT SCREW – DOTS & ARCS FKP-PST-375-P    3/8″ PIVOT SCREW -PLAIN FKP-PST-375-R   3/8″ PIVOT SCREW – RADIAL