Brass CZ121 "Griplok" expansion insert

 Press-in expansion inserts which, due to their diamond

 knurl pattern, give minimum penetration of the sides

 of the hole without losing pull-out resistance.

 This makes them idealy suitable for applications in hard     thermosetting plastics.

 Simple unheaded installation procedure require no   special equipment.

 Available as headed, unheaded and reverse headed   versions.