From our MB700 Series:

MB 700-080

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 700-080

d1 d2 +0.10 / -0 d3 Max l1 (l2) ~ Ref. l3 min. x ±0.2 (s) ~ Ref. Packaging Unit Weight in gram/pcs.
8 8 7.4 8.5 11.6 8.3 0.3 3.5 50 / 1000 2.84
d1 8
d2 +0.10 / -0 8
d3 Max 7.4
l1 8.5
(l2) ~ Ref. 11.6
l3 min. 8.3
x ±0.2 0.3
(s) ~ Ref. 3.5
Packaging Unit 50 / 1000
Weight in gram/pcs. 2.84

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