Bolts are graded and marked for
identification. Are nuts also marked and graded?
What does a single notch on each hex corner of
a nut mean?
You have a bolt with stripped threads. Why?
Name at least 3 reasons other than the bolt quality.
If a Grade 5 bolt was torqued the same as a
Grade 2 bolt, will it have the same or greater clamping force than
produced by the Grade 2?
You have a shear problem. How many ways can it
Will a lubricated bolt tend to loosen more
How many times can you safely reuse a nut?
Approximately how much clamp load is lost from
joint compression during the first 90 seconds after initial
Is there a ‘wrong’ way to use a flat washer?
The approximate clamp load of a ˝-13 Grade 8
fastener, 21/2 inches in length, is 12,770 pounds when torqued to
75% of its proof load. The joint thickness is 2”. The joint relaxes
0.002”. How much clamp load is lost?