Spring-Lock post, Interchangeable with similar pedestals that incorporate a 1.77" post and plastic base.
Springfield Marine part number: 1640403
Springfield Spring-Lock Non-Threaded 15.5" Fixed Height x 1-3/4" Diameter Stainless Steel Post.
ABYC Code: B
Use with non-locking Spring-Lock seat mounts.
Use with any similar non-locking Spring-Lock base.
Thank you for shopping at Green Bay Prop!!
Christine