Expansion insert, type B-Lok® 821-823
![Expansion insert, type B-Lok® 821-823 Expansion insert, type B-Lok® 821-823](https://www.junoindustries.eu/media/producten/pics/10/00-specialinsert_expansie_insert_type_b-lok_821-823.jpg)
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Expansion insert with slot, type 821 up to 823 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 M3 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.