Elesa+Ganter GN 251.6 bolt with magnet
Material bolt/nut: Steel, zinc plated, blue passivated, class 5.8 (tensile strength 500 N/mm²).
Material magnet: Neodymium, iron, boron NdFeB ND, temperature resistant up to 80° C.

Datasheet GN 251.6

GN 251.6