Te-Co 68350 Delrin Knob Hand Retractable Spring Plungers - Steel: Non-Locking Handle, Metric, 0.5"/13.00 mm Stud Length, M6 x 1.

Body Length (F)0.980 in25.00 mmBody MaterialSteelFinal End Force0.34 lbHandle MaterialBlack DelrinHead Diameter (E)0.480 inInitial End Force0.11 lbLength (G)0.630 in16.00 mmLock TypeNoLocking Element PresentYesNose Diameter (D)0.117 in3.00 mmNose MaterialCase Hardened SteelPlunger MaterialSteelProjection Size (C)0.118 in3.00 mmStud Length (B)0.500 in13.00 mmThread Locking Element1Thread Size (A)M6 x 1.00TypeRetractable Spring PlungerVLIER #MPRT6PWidth Across Flats (H)0.236 in6.00 mm