Considering included angle θ of the thread to be 60˚ using the Best-Wire method, the difference between

Q. Considering included angle θ of the thread to be 60˚ using the Best-Wire method, the difference between the effective diameter (E ) and the dimension under the wire (T ) for M10 × 1.0 mm is closest to

(A) 0.289

(B) 0.578

(C) 0.867

(D) 0.982

Ans: 0.289

Sol: