BRAND NEW IN BOX. Pro series cylinder head studs from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining and are rated at a whopping 220,000 psi. ARP Pro series kits are also available with 12-point nuts, and all kits come complete with hardened parallel washers for an even load distribution and accurate torque readings. Ford International 6.9L diesel. Fastener Material: 8740 chromoly. Fastener Finish: Black oxide. Cut to Fit: No. Actual product may vary. Mom of 2, hard working, innovative and perfection addict. We provide the best customer service in the market for all car enthusiasts. Please do not hesitate to get in touch with us for all your parts needs. Thank you for shopping with us! Your address must be confirmed. We always look to satisfy our customers in whatever needs they may have. Local pickups are welcome for this item.