Koenig LK plugs are available in case hardened annealed or stainless steel to plug cross-drilled holes in pneumatic vales and manifolds. Expandable sleeve surrounds a mandrel and anchors to base material. Available in 4 to 12 mm sizes, they install directly into holes without machining and are tested to 2600 psi with a working pressure of 870 psi in all metals.

Sherex Industries Ltd., (866) 374-3739, www.sherex.com