1/4-20, 0.4" Thread Length, 0.123 to 1/8" Max Plunger Diam, 0.5 Lb Init to 2 Lb Final End Force, Loc

1/4-20, 0.4" Thread Length, 0.123 to 1/8" Max Plunger Diam, 0.5 Lb Init to 2 Lb Final End Force, Locking Knob Handle Plunger Knurled Knob, 0.53" Length Under Head/Shoulder, 1/8" Plunger Projection