GN 251.2 Stop Bolts Steel, With Limit Switch


GN 251.2 Steel Stop Bolts, With Limit Switch

Product description


GN 252.5 stop bolts are supplied with a hardened round head that serves as a firm end stop. Typically 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 removed without need for loosening the setting bolt.

Note: If the screw-in thread is grounded, the blue wire has to be connected to the workpiece.


Steel, nickel-plated, hardened to HRC45, tensile strength 500 N/mm2, hexagon head

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-- -10°C - 80°C (-14°F - 175°F)
  • Load--~1 N

Supply wire
  • Diameter--3mm
  • 2-phase, ~ 2 meters long
  • Max. tensile load 30 N
  • Gray for Type S
    (normally open)
  • Black for Type O
    (normally closed)

Protection classification
IP 40

RoHS compliant

Technical drawing

Hide technical drawing
GN 251.2 Steel Stop Bolts, With Limit Switch  sketch

Part Options / Table


SNormally open
ONormally closed
Show / Hide columns


Dimensions in: Inch | Metric

Build & Price

Thread d
Thread length l1

Selected Part

Total USD (net)
In stock: 0
Call / Email for Delivery Time
Please note our quantity discounts (USD).
≥ 250$116.28
Weight: 0.176 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351
RoHS compliant: -
This part is new in our product range, no details are available at this time. For more recent details on the RoHS compatibility, please contact our Sales Department!
Phone: 800-877-8351
All Prices are in US Dollars. Taxes Not Included.

CAD data

Quick Download

To download CAD data without creating an account, please enter your e-mail address. Max of 3 CAD downloads per day unless you create an account.

Please enter the code you can find in the picture.

Save as Favorites

Please enter the code you can find in the picture.

Need Help?

Our service team is available from Monday to Friday between 7:30 AM and 5:00 PM Central Time:800-877-8351

Special Requests | Contact our sales team

This could also be interesting...

JW Winco - Contact

United States
Phone: 800-877-8351
Fax: 800-472-0670
Hours M-F 7:30 AM - 5:00 PM CT

Request Callback:

Privacy Policy

Request a Catalog

Request one of our many catalogs! For an overview of our products request the Product Overview Catalog (POC).

Request Free Catalogs

Sales Contacts

You are looking for a Winco partner near you? Please select the country.