Problem $3$: The cantilever bracket is bolted to a column with three $M121\mathrm{.}75$ISO$5\mathrm{.}8$ bolts. The bracket is made from AISI $1020$ hot$-$rolled steel.

Draw a free body diagram of the joint and show all forces acting at each bolt due to applied loads

Determine the resultant force at each bolt to determine which of the bolts $A,O$ or $B$ is critical

If the column is $8$ mm thick, then determine whether the shearing of bolt will occur on threaded or unthreaded portion of the bolt

Find the factor of safety against shearing of the bolt