Ball-end thrust screws with head

Material:
Screw carbon steel.
Ball ball-bearing steel.

Version:
Screw grade min. 10.9, black.
Ball hardened, bright.

Note:
Form A with full ball is used when a clean, polished contact surface is required. Surfaces which are not flat and parallel can be firmly clamped or supported with Form B with flattened ball, the movable ball can adapt itself up to 9°.