The Autolite Platinum Core Spark Plugs Stock # AP985 are designed with a reach of 3/4" and a metal type of platinum. These spark plugs have a terminal type of solid and an extra-long projection tip configuration. With a thread size of 14mm X 1.25, they are suitable for car and truck ignition systems. The Autolite brand ensures quality and reliability, making these spark plugs a dependable choice for performance and longevity.