These are custom button head socket screws with half dog point used in an aerospace assembly application by our long time customer.  18-8 material is used to domestically manufacture these parts and the half dog point measures .225-.235 diameter by .150-.170 inches in length.  The screw itself measures 5/16-24 X 1″ and we had these produced at a small quantity of just 25 pieces with rush service at 2 weeks lead time.  Material certs, inspection report, and certificate of conformance was provided with the parts per our aerospace customer’s specifications.