Type B - Smooth contact face
Type K - Spherical contact face
Type R - Serrated contact face
GN409.2 Positioning Element, with Female Thread, Steel
These positioning elements, GN 409.2, with female thread, are designed for use as locating plungers, stops and thrust blocks.
Also available are positioning elements GN409.1 (with male thread).
Steel ST - Hardened, blackened.