There are a number of listings out the showing 5/16" bolts for a chevy truck, The correct size for the trucks is 3/8. Check your truck before ordering

This offer includes a set of 12 Door Hinge Bolts along with the appropriate 3/8" Type Washers, as shown in the picture. The quality of these Bolts is top-notch.

Correct black phosphate door hinge bolt set for mounting your door hinges. Mounts all four hinges to body and to the doors. 

These bolts are versatile and can either be painted or left in their original state due to the black phosphate finish. The choice is up to the owner. We prefer to install the doors after they have been painted with the black phosphate finish.