Standard thread-forming fasteners with a 60° flank angle create excess debris when driven into low-ductile materials. They can easily exceed the ductility limits of the material, causing damage to the formed threads.
MAG-FORM® fasteners are specifically designed with a broader flank angle to eliminate tapping operations while forming strong threads in conventional magnesium die-castings and similar materials. The design also minimizes debris, making MAG-FORM® fasteners the optimal solution for critical applications such as electronics and air bag modules.
Standard Design Guidelines
Suggested Hole Sizes For Die-Cast Magnesium*
In order to utilize as much available screw strength as possible, the minimum length of thread engagement, excluding the two lead threads, should be equal to 2-1/2 times the basic screw size. Blind holes should be deep enough to allow a two-threaded lead with clearance, at the bottom of the hole. The included draft angle is 1.0°.