GN 251.6 Stop Bolts Steel, with Retaining Magnet


GN 251.6 Steel Stop Bolts, with Retaining Magnet

Product description


Stop bolts with retaining magnet GN 251.6, in combination with the steel housing of the hex head screw, form a system that shields and strengthens the magnet for optimal transmission of the magnetic flux onto the magnetic surface.

These stop bolts are suitable as workpiece stop, with the integrated magnet holding the workpiece in place.

After positioning, the stop bolt can be secured with the included lock nut.


Hex head screw

  • Property class 5.8
  • Zinc plated, blue passivated finish

Hex nut

  • Property class 04
  • Zinc plated, blue passivated finish

Magnet material
Neodymium, iron, boron
Temperature resistant up to 176 °F (80 °C)


Technical drawing

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GN 251.6 Steel Stop Bolts, with Retaining Magnet sketch

Part Options / Table

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Dimensions in: Inch (change to Metric)
l1d2e ≈k1k2l2
sNominal magnetic forces
M 60.470.630.790.981.180.390.430.16 - lbf (25 N)
M 80.630.790.981.181.570.510.570.21 - lbf (50 N)
M 100.790.981.181.571.970.670.700.25 - lbf (75 N)
M 120.981.181.571.972.360.750.790.30 - lbf (110 N)
M 161.181.571.972.363.150.941.060.39 -0.040.310.240.9432.60 lbf (145 N)
*Thread is nut compatible

Build & Price

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Total US Dollars (net)
In Stock: 990
In Stock
Please note our quantity discounts (US Dollars).
≥ 500$5.94
Prop 65: Not compliant
Cancer and Reproductive Harm -
RoHS: Compliant
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).
Weight: 0.011 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351
All Prices are in US Dollars. Taxes Not Included.

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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

GN 251.6-M6-12-NDGN 251.6-M6-16-NDGN 251.6-M6-20-NDGN 251.6-M6-25-NDGN 251.6-M6-30-NDGN 251.6-M8-16-NDGN 251.6-M8-20-NDGN 251.6-M8-25-NDGN 251.6-M8-30-NDGN 251.6-M8-40-NDGN 251.6-M10-20-NDGN 251.6-M10-25-NDGN 251.6-M10-30-NDGN 251.6-M10-40-NDGN 251.6-M10-50-NDGN 251.6-M12-25-NDGN 251.6-M12-30-NDGN 251.6-M12-40-NDGN 251.6-M12-50-NDGN 251.6-M12-60-NDGN 251.6-M16-30-NDGN 251.6-M16-40-NDGN 251.6-M16-50-NDGN 251.6-M16-60-NDGN 251.6-M16-80-ND

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