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 ST, Tensile strength class 5.8
Type BK - nickel plated, Polyurethan disc, 90 Shore
Hexagon nut - Steel ST, zinc plated, blue passivated