+1 vote
in Machine Design by (86.7k points)
Tr 40 x 14(P 7), here 14 indicates

(a) Pitch

(b) Lead

(c) Diameter

(d) None of the mentioned

I came across this question at a job interview.

This key question is from the Power Screws & Self Locking Screws unit in Power Screws of Machine Design

1 Answer

0 votes
ago by (48.2k points)
Accurate answer is (b) Lead

Expand on the concept with: Tr=Trapezoidal threads,14=Lead(mm),7=Pitch(mm).

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