Fixing pin is a job that involves securing two objects together. It is done by using a BOLT and a NAIL. A BOLT is a type of fastener consisting of a head, a threaded shaft, and a nut. A NAIL is a thin metal rod with a pointed tip on one end and a flat head on the other. Both the BOLT and the NAIL are used to secure the two objects together. The BOLT is inserted into a hole in one object and the NAIL is driven into the other object. The two objects are then held together securely by the BOLT and the NAIL.