These custom 17-4 stainless steel shoulder screws were manufactured using DFARS compliant material for our defense customer, with MIL-DTL-13924D black oxide finish and heat treat to condition 1025. M3 X 0.50 thread was incorporated at a length of 4.06MM and the shoulder measured 3MM in diameter by 24.5MM. The head incorporated an aggressive diamond knurl and a broached 6-lobe drive. Full certs with a FAIR were provided with the parts.