Library › Hardware › Laboratory rubber stoppers #0–#13

#2 stopper

#2 stopper: Ø20 top, Ø16 bottom, 25 mm tall

Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.

STEP STL free, CC BY 4.0 (credit "Xem Studio")

Dimensions

number#2
top_mm20
bottom_mm16
height_mm25
fits_opening_mm17–19
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From the full sheet

Laboratory rubber stoppers #0–#13 (25 mm tall): every size, notes, mating features and sources. What size rubber stopper fits a 25 mm test tube or a soda bottle?

Other sizes