This is set of (5) cage nuts with a 5/16-18 thread, that fit a square hole approximately 7/16" by 1/2". These are a match in color and shape to the factory originals in black phosphate color. 

These were commonly used on the doors, hood, fenders, trunk lid and radiator support parts of the vehicles. These are exactly like the originals and were used on many different makes, and models from the 1940's through the 1990's.

Please check your application for correct fit.