Ball Plunger, Thread Size 5/16 In. -18, Thread Length 0.578 in, Nose Shape Ball, Plunger Material Stainless Steel, Plunger Dia. 0.1560 in, Plunger Projection 0.04 in, Mounting Type Slotted Drive, Body Length 0.578 in, Final Nose Force 4.5 lbf, Flange Thickness Not Applicable, Initial Nose Force 2 lbf, Overall Length 0.618 in, Plunger Width 0.156 in, Thread Pitch 0.056 in, Handle Type Not Applicable, Application Controlled End Force, Side Tolerant, Smallest and Lightest Spring-Loaded Device. This item has been restricted from sale in the following state (s): []