To prevent damage to a work surface while fastening
a) do not over-tighten a nut
b) use castle nuts only
c) use toothed lock washers
d) use flat washers
e) use a lubricant during threading and tightening
Answer: D
To prevent damage to a work surface while fastening
a) do not over-tighten a nut
b) use castle nuts only
c) use toothed lock washers
d) use flat washers
e) use a lubricant during threading and tightening
Answer: D