Question

Select the correct option regarding plain washer.
(i) A circular plate having a square hole in its centre.
(ii) The standard inner diameter is ‘d + 1’.
(iii) Its outer diameter is ‘2d’.
(iv) It is placed below the nut.

• A. (i) and (ii) only
• B. (ii) and (iii) only
• C. (ii) and (iv) only
• D. (iii) and (iv) only

Hint:

Standard plain washer formulas for drawing:
• Inner Hole Diameter ($d_i$) = $d + 1$ mm
• Outer Diameter ($D$) = $2d + 3$ mm
• Thickness ($t$) = $0.15d$

Answer 1

The Correct Option is C