Type AK - with lock nut
GN251 Setting Bolt, Steel, Blackened, Hexagon Head Hardened
Setting bolts GN251 are produced with a hardened and rounded head which can be used as support or setting bolt as an end stop.
Screw - Tensile strength class 5.8 500 N/mm2
Type AK - blackened, Locating surface, hexagon head hardened (HRC 45)
Hexagon nut - steel, zinc plated, blue passivated