Our magnetic screws are perfectly sized for our battery and speaker mounts. Each 1" magnet is the strongest our supplier offers, and has 37-lb of pull force! Although these are not a requirement for many installations, they do offer a unique solution for certain applications.
[1] purchase is 1 magnet and screw.
These magnets are designed for BATTERY MOUNTS. Tool mounts with 2 holes will not hold. 37-lb is the pull force directly away from steel. Surfaces covered in thick fabric or paint can reduce the magnetic force.
Safety: these are very strong Neodymium magnets. They are attracted to each other with 74-lb of force, and are a pinching hazard. Keep away from children, medical devices, pacemakers, hard drives and sensitive equipment.