Springfield Marine Kingpin Posts Pin Type. The sturdy and reliable Springfield Marine King Pin Posts Pin Type is made with an e-coat finish rust-resistant and designed for quick and simple installation. The Springfield Marine 1615201-EC Kingpin Posts Pin Type is intended for use with any thread-lock fixed height post for fishing use only. For a great way to make sure you have some of the best gear the maritime industry has to offer choose the Springfield Marine Kingpin Posts Pin Type. Features of Springfield Marine 1615201-EC Kingpin Posts Pin Type E-Coat Finish Rust-resistant Use with any thread-lock fixed height post for fishing use only (sold separately) Designed for quick and simple installation Package Contents: Springfield Marine 1615201-EC Kingpin Posts Pin Type Springfield Marine 1615201-EC: Kingpin Posts Pin Type