Locking fastener

Details Locking fastener Locking fastener

F - Mech Eng,Light,Heat,Weapons

16

B

85/74

F16B 39/02 (2006.01) F16B 39/30 (2006.01)

Patent

CA 1111292

ABSTRACT OF THE DISCLOSURE A vibration-resistant prevailing torque fastener combination comprising a conventional first element having a standard thread form with first flank angles and a modified second element having a thread form characterized by second steeper flank angles over the entire length thereof, and a truncated root caused by foreshortening of the flanks over a portion of the thread length to produce a helical flat which firmly engages and typically deforms the crest of the first element when threadedly engaged therewith. A difference in flank angles provides longitudinal clearance to receive the deformed material during the threaded engagement. Tapping tools are disclosed.

319860

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