Jergens®, 27556, Locking Plunger, Hand Retractable, 16 mm Diameter Body, M8 x 1.25 Thread, 16 mm Thread Length, 4 mm Length Under Flange, 16 mm Plunger Diameter, 0.34 kg Initial End Force, 1.36 kg Final End Force, 7 mm Plunger Projection, Steel Body, Zinc Plated