Hi guys,
I have been designing a new type of nut that folds around a thread as opposed to being wound on from the end, The fastener is being manufactured out of Nylon 6/6.
We have recently completed some tensile tests on the load strength and some proof load tests for deformation under load...
I have come across this company operating out of Canada http://www.boltmate.com, they do a two part nut that has an inverted conical center with a matching outer ring. The outer ring is laser welded to the center cone, when you torque the nut to the specified load - the laser welds self destruct...