Jergens 30929 Threaded Spring Plunger

5/8-11, 1-1/2" Thread Length, 5/16" Plunger Projection, Steel Threaded Spring Plunger 0.31" Max Plunger Diam, 1-1/2" Plunger Length, 3.5 Lb Init End Force, 10.5 Lb Final End Force, 5/16" Hex