To maintain a reputation for "zero defects", ensure optimum quality control, and produce fasteners of exceptionally high quality, ARP controls all aspects of the manufacturing process, performing all operations in-house where they can be closely monitored. ARP takes extraordinary steps to produce the very finest products of their kind on the market today, so a great way to make sure that carburetors stay perfectly sealed to the intake manifold is through the use of ARPs carb studs. Manufactured from rust-proof stainless steel, these studs feature J-form threads to resist loosening from vibration. This kit contains four studs, size 5/16, with an overall length of 3.200, and comes complete with hex nuts and washers.