Posted Date: 01/03/2011
AFJ FASTENER QUIZ
QUESTION #1
When nuts are stripping in application due to dilation, should one _____ INCREASE THE WALL THICKNESS or _____ ADD HEIGHT to cure the problem?
QUESTION #2
True or False: When a finished hex jam nut is used to lock a finished hex nut, it should be used on top of the finished hex nut, so that the hex jam takes the full load.
QUESTION #3
True or False: In all cases, nuts must have a proof load equal to the ultimate tensile of the screw used with any particular fastener grade.
source and answers via American Fastener Journal.