Type AK - with lock nut
Type BK - with Polyurethan disc
GN251 Setting Bolt, Steel, Nickel PlatedLocating surface with Polyuretahn disc
Setting bolts, GN 251, are produced with a hardened and rounded head which can be used as support or setting bolt as an end stop.
The version with Polyurethan disc (Type BK) functions as damping element or protection for sensitive surfaces.
Screw - Steel, Tensile strength class 5.8
Type AK - blackened, Locating surface hardened (HRC 45)
Type BK - nickel plated, Polyurethan disc, 90 Shore
Hexagon nut - Steel, zinc plated, blue passivated