Screw carbon steel, grade 10.9
Ball, ball-bearing steel.Version:
Screw black.Ball hardened, bright.
Note:Surfaces which are not flat and parallel can be firmly clamped or supported with with a flattened ball, the movable ball can adapt itself up to 9°. Longer versions have been designed especially to be glued in. This allows mechanical connecting elements with external thread to be made cost-effectively for small and medium-sized series