Rubbered of effective protection: The rubber coating has good friction and primarily avoids scratches and damage to the pressure or other sensitive iron surfaces. M6 thread: with threaded cones in the screw size M6.perfect for screwing and assembling. High-level magnets: magnets rubberized particularly strong tensile force.43mm diameter over 10kg of detention. Use: magnets rubberized with threads can attach your carights, perspective mirrors, door bells, cameras, solar lights, tools in the tool room, etc.With more use, you find surprises. Package includes: there is 40-part magnets rubberized.Neodymm magnets of rubberized comes with nuts, washers, spacers., Weight: 3.2187490252 Pounds, Manufacturer: Yoeruers