From our SK550 Series:

SK 550-120

Pull-style expander seals use an integrated mandrel to insert the expander plug into a drilled hole. This type of KOENIG EXPANDER® plug does not require the hole to be counter-bored, and is often used for angled channels or installations with difficult orientations. They are ideal for installations with space or weight constraints.

Specifications for: SK 550-120

d1 d2 d3 +0.12 / -0 l1 l2 l3 max. L4 Max. (BO) Packaging Unit Weight in gram/pcs.
12 5.7 12 12.5 50 22.5 16.5 50 / 250 16.77
d1 12
d2 5.7
d3 +0.12 / -0 12
l1 12.5
l2 50
l3 max. 22.5
L4 Max. (BO) 16.5
Packaging Unit 50 / 250
Weight in gram/pcs. 16.77

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