These custom grade 5 automotive screws are exactly the same dimensionally as the 1/4-28 version but with two specific distinctions: the thread had to be 1/4-32 instead for this 2,500 pcs batch. The hex socket drive was broached instead of cold heading, the marks of which you can see at the very bottom of the hex recess.  That allowed us to save weeks of lead time and we also expedited the thread lock application process as well as all the transit in between processes.  Level III PPAP paperwork is provided with the parts per our customers original request and requirement.