Thread forming screw and method of forming an internal...

Details Thread forming screw and method of forming an internal... Thread forming screw and method of forming an internal...

B - Operations, Transporting

23

G

B23G 9/00 (2006.01) F16B 25/00 (2006.01) F16B 33/02 (2006.01)

Patent

CA 2087317

A thread forming screw for cold forming internal threads in a workpiece comprised of a low ductility material, such as magnesium and the like. The screw uses primarily compressive forces to form the internal threads in the workpiece. The screw has a shank (16) having an entering end and a head end. External threads (24) are disposed on the shank (16). The external threads (24) define a thread configuration with an angle (66) measuring substantially within the range of ninety degrees to one hundred and twenty degrees.

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