Expansion insert from Specialinsert, type B-Lok 812-815

Expansion insert from Specialinsert, type B-Lok 812-815
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Expansion insert with slot from Specialinsert, type 812 up to 815 for soft plastics and hard wood.

Description

Self-locking expansion insert in brass with slot from Specialinsert that provides an easy to mount solution for low and middle performances. These are available in M2 up to M8 innerthread and can have 1 or 2 vanes for extra rotational grip.

 
The self-locking function depends on the elasticity of the receiving material.