J.W. Winco 251.6-M6-12-ND Setting Bolt with Retaining Magnet, GN251.6, M6 x 12 mm, Steel Zinc Plated Blue Passivated Body, Tensile Strength Class 50.8 (500 N/mm²), Neodymium Iron and Boron NdFeB Magnet
These Setting Bolts are a shielded magnetic assembly. One example use for these setting bolts is as work piece stop, with the magnet holding the work piece in place. The included locking nut can be used to secure the setting bolt after positioning.