Type B - Smooth contact face, turned
Type G - Smooth contact face, ground
Type K - Spherical contact face, turned
GN408.1 Positioning and Supporting Element, Threaded Stud, Steel
Positioning and support elements GN 408.1 are used in device and tool construction for mounting and positioning workpieces. They can also be used as stops, thrust pieces or feet.
Type G is especially suited for applications in which the height of the support surfaces must be as precise as possible. On uneven or inclined surfaces, such as unmachined parts, the curved support surface of type K offers particular advantages.
Steel ST - case hardened, blackened.
Type B / K - Contact face, turned
Type G - Contact face, ground