Attwood Marine Lock'N-Pin Boat Seat Pedestal Posts, 3/4 in Pin, Fixed Height

Overview

The Attwood Marine Lock'N-Pin is a fixed-height 3/4" pin boat seat post range for vessels using compatible Lock'N-Pin seat mounts and base plates. These posts give a replacement or added seating position in cockpits, fishing decks, pontoon layouts, and other onboard areas where a fixed seat height is preferred over an adjustable pedestal.

The range centers on a 3/4" pin connection and commonly uses a 1.5" diameter post body. Depending on the configuration, the post may be brushed aluminum with a steel pin or polished stainless steel with an SS pin. Lock'N-Pin hardware is made to lock the seat mount, post, and base together so the seating components do not separate unintentionally during normal use.

These fixed posts are part of Attwood's ABYC H-31.6.1 compliant Lock'N-Pin seating hardware family. Match the height, threaded or non-threaded pin style, and construction to the existing base and seat mount on the boat before installation.

Key features

• Fixed-height 3/4" pin post format for compatible Attwood and Swivl-Eze Lock'N-Pin seating systems.
• Available in multiple heights and post constructions to suit different seating positions on fishing boats, pontoons, and cruising boats.
• Threaded and non-threaded pin options are available, helping the post match the base style already installed on the vessel.
• Standard brushed aluminum versions use a steel pin, while the stainless offset configuration uses polished stainless steel construction with an SS pin.
• Lock'N-Pin connection helps prevent unintentional detachment between the seat mount, post, and base.
• ABYC H-31.6.1 compliant hardware family for proper marine seating installation when used with the correct compatible components.

Variants

This product range varies by height, threading, and construction. The listed configurations include 11", 13", 16", and 24" brushed aluminum posts with steel pins, plus a polished stainless steel offset post configuration with an SS pin.

Threaded versions are meant for matching threaded Lock'N-Pin bases, while non-threaded versions are used with compatible non-threaded bases. The taller posts give a higher seating position, and the offset stainless configuration changes the seat position relative to the base, which can help when clearance around the console, gunwale, or fishing area is limited.

Compatibility and fit

Confirm that the boat uses a 3/4" Lock'N-Pin seat system before ordering. The post should match both the seat mount above it and the base plate below it, including the threaded or non-threaded pin style. A mismatch can prevent the post from locking correctly or seating fully in the base.

For replacement work, measure the current post height and check whether the existing pin is threaded. For a new seating position, confirm the base location, deck structure, seat swing, and leg clearance before drilling or fastening any hardware.

Installation and use

Install the post only with compatible Lock'N-Pin mounts and bases, and make sure the pin locks into place before the seat is used. The base should be mounted to a deck area with enough backing and support for the seating load expected on board.

These posts suit fixed seating positions where simple height and secure engagement matter more than height adjustment. They are a practical match for anglers, pontoon owners, and boaters replacing worn seating hardware in an existing Lock'N-Pin setup.

Maintenance and care

Rinse the post and base area with fresh water after saltwater use, especially around the pin and locking point. Periodically check that the post inserts cleanly, locks fully, and shows no bending, corrosion buildup, or wear that could affect seat stability.