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GN251.2 Setting Bolts Limit Switch round head firm end GN 251.2 251-2 GN251-2 GN 251-2

Standard Machine Elements > Screws, Nuts, Washers Clamping & Supporting Elements > Positioning Elements / Clamping Pads
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GN251.2 Setting Bolts, with Limit Switch, Steel

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GN251.2 Setting Bolts, with Limit Switch, Steel

Setting bolts GN251.2 are supplied with a hardened round head which serves as a firm end stop. In general these bolts are installed with a locknut.

When the workpiece contacts the bolt head an electrical signal is transmitted by means of the limit switch.

By means of the knurled nut, the limit switch can be installed and taken out without having the need to loosen the setting bolt.

If the screw-in thread is earthed, the blue cable has to be connected to the mass.


Bolt - Steel, Tensile strength 5.8 (500 N/mm2), Hexagon head, hardened to HRC45, nickel plated.

Hexagon nuts - Steel, nickel plated.

End limit switch - Voltage: 5 - 24 V DC, Switching load recom: 5 - 10 mA, Switching load:20 mA DC max., Life expectancy: 3 million operations, Temperature range: -10C to +80C Load: ~1 N.

Protection classification : IP 40.

Supply cable - PVC, 3; 2-phase, ~ 2 meters long, max. tensile load 30 N grey for type S, (normally open), black for type O, (normally closed).

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