The engineers at ARP spent quite a bit of time developing these highly effective, unique oil pan studs. They’re designed to make it as easy as possible to install a pan and seal it properly. You’ll note that the studs have a radiused bullet nose that serves to locate the pan rails, then allow the nuts to be easily installed without the worry of cross-threading. For those who prefer bolts, ARP’s got you covered, too. Both are available in black oxide finished chrome moly steel or rust-proof stainless steel. Also, you may choose between conventional hex style or the space-saving 12-point nuts. The stud kits come complete with a special locking flanged nut, while the bolt kits come with washers. *TECH TIP* Always use some type of lubricant, such as ARP Ultra-Torque fastener assembly lubricant, when assembling fasteners. Assembling without lubricant can lead to galling or seizing, resulting in costly, time consuming repairs. PartNumber : arp454-1804 Description : Oil Pan Bolt Kit; Hex Head Material : Stainless Steel Engine Components::Hardware Kits - Other