- matt chrome-plated, head polished
- ELORA-Chrome-Vanadium 31CrV3 / 1.2208
- square drive according to DIN 3120, ISO 1174,
with ball retaining groove resp.
with ball locking device
- according to DIN 3123, ISO 3316
YAEL-870-25
YAEL-870-3
YAEL-870-35
YAEL-870-4
YAEL-870-5
YAEL-870-55
YAEL-870-6
YAEL-870-66