Machine Design
According to I.B.R., shearing resistance required to shear off the rivet per pitch length (in double shear) is (where n = Number of rivets per pitch length)

2 × (π/4) d² × τ × n
1.875 × (π/4) d² × τ × n
3 × (π/4) d² × τ × n
(π/4) d² × τ × n

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Machine Design
When the shaft rotates in anticlockwise direction at slow speed in a bearing, it will

Have contact at the bottom most of the bearing
Move towards right of the bearing making no metal to metal contact
Move towards right of the bearing making the metal to metal contact
Move towards left of the bearing making metal to metal contact

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Machine Design
A bolt

Is provided with pointed threads
Has head at one end and other end fits into a tapped hole in the other part to be joined
Has both the ends threaded
Has a head on one end and a nut fitted to the other

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