To provide a hinge configured with a less number of component parts and requiring less time and labor to perform assembling.

The hinge is equipped chiefly with a shaft 4 shaped in a stepped circular column and a fastening member 10 in the form of a coil spring fitted on the shaft 4 in the fastened condition, and further a case 12 is provided capable of making relative rotation with the shaft 4. The forefront 10b of the fastening member 10 is secured to an adjuster 20 fixed removably to the bottom wall 13 of the case 12. The base end 10b of the fastening member 10 is fixed to an insertion part 16b formed in the rear wall 16. Sliding rotation of the fastening member 10 relative to the shaft 4 allows the case 12 also to make relative rotation with the shaft 4.