From our MB700 Series:

MB 700-180

KOENIG EXPANDER® plugs effectively seal drilled holes. These parts feature a serrated sleeve which expands as the ball is inserted, enlarging the part to the needed size and sealing the hole. For installation, push-style expanders require a hole drilled with a counter bore.

Specifications for: MB 700-180

d1 d2 +0.10 / -0 d3 Max l1 (l2) ~ Ref. l3 min. x ±0.2 (s) ~ Ref. Packaging Unit Weight in gram/pcs.
18 18 16.7 19 26.3 18.5 0.6 8.0 25 / 100 31.34
d1 18
d2 +0.10 / -0 18
d3 Max 16.7
l1 19
(l2) ~ Ref. 26.3
l3 min. 18.5
x ±0.2 0.6
(s) ~ Ref. 8.0
Packaging Unit 25 / 100
Weight in gram/pcs. 31.34

* SFC KOENIG’s North American Engineering Department utilizes 2024-T4/T6 as a test base material.