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Type AK - With lock nut
Type BK - with Polyurethan disc
Product Description
GN251 Setting Bolt, Steel, Blackened, Hexagon Head Hardened
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.
Specification
Screw - Tensile strength class 5.8 500 N/mm2
Type AK - Blackened, Locating surface, hexagon head hardened (HRC 45)
Type BK - nickel plated, Polyurethan disc, 90 Shore
Hexagon nut - Steel ST, zinc plated, blue passivated