Custom 6-lobe socket head cap screws manufactured domestically in 18-8 stainless steel material at approximately 8,000 pcs. Our customer wanted us to provide these custom screws in black oxide finish after running them through ASTM A967 passivation. Partial unthreaded shoulder was incorporated and the thread was rolled instead of the cut alternative. Lead time for similar projects is currently running at 8-12 weeks from order confirmation.