Generally
A newly manufactured valve cover screw that is very similar to the original. It has the same length and dimensions as the original screw, but the surface treatment is different. It also has small grooves at the front of the threaded part, so when you screw it on, you also clear the threads in the top cover. The size of it is 1/4″ UNC with a length of 15.4mm under the skull 3/8″ Wrench socket. 1 motor requires 8 screws.
