They are then Bright Zinc plated to prevent corrosion. We provide all new hardware for installation. The kit includes Oil Pan Studs & Nuts to eliminate the factory bolts and allow for higher torque, and longer motor mount bolts necessary for installation. We recommend installation on all vehicles, from stock to highly modified.Hex Flange Lock Nuts (x17). The item "Banzai Racing Oil Pan Brace & Stud Kit 93+ RX-7 FD3S 13B-REW Sump" is in sale since Monday, August 26, 2013. This item is in the category "eBay Motors\Parts & Accessories\Performance & Racing Parts\Other". The seller is "banzai-racing" and is located in Pierceton, Indiana. This item can be shipped worldwide.