Fasteners Flashcards
1
Q
metric thread pitch measures
A
millimeters per thread
2
Q
can non locking nut substituted for lock nut?
A
no
3
Q
if overtightening on torque, you risk
A
shearing fastener head off or yield fastener
4
Q
with lack of torque the fastener will
A
loosen and fall out. it will stretch/ contract
this causes it falling out from fatigue
5
Q
what are designed for 1 time use only
A
lock patch fastener
must be replaced every time they are removed
