FCS II Plug - Black

The FCS II Fin Plug – Black is the genuine FCS fin box designed for surfboard manufacturing, new board construction, and professional surfboard repairs. Featuring the FCS II keyless retention system, these plugs allow fins to be installed and removed quickly while maintaining a secure, high-performance fit.

The FCS II installation system uses a single-depth router cut, simplifying installation compared to earlier dual-depth systems. Each plug includes an adhesive installation cover that helps keep resin out of the fin cavity during lamination for a clean, professional installation.

Available Cant Options

• 0° Center Plug – Sold individually for center fin positions.
• 3° Rail Pair – Includes left and right plugs for rail fins.
• 5° Rail Pair – Includes left and right plugs for increased fin cant.
• 9° Rail Pair – Includes left and right plugs for maximum fin cant.

Choose the cant angle that best matches your surfboard design and desired performance characteristics.

Features

• Genuine FCS II fin plug
• Black high-strength composite construction
• Tool-free FCS II fin installation and removal
• Compatible with all FCS II fins
• Backwards compatible with original dual-tab FCS fins when used with grub screws
• Single-depth routing for easier installation
• Adhesive installation covers help prevent resin contamination during lamination
• Ideal for new surfboard construction and professional repairs