FCS II Fin Boxes - Black

FCS II Fin Boxes - Black

0°-Center Plug (1)
$10.80
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FCS II Fin Boxes - Black

FCS II Fin Boxes - Black

$10.80
Shipping calculated at checkout.
Description

The FCS II system requires no grub screws or keys to secure the fins to the board, it is an efficient keyless system for quick fin installation and release. Fins can be easily inserted and removed in seconds, allowing you to adapt your equipment to the conditions, on land and in the water.

Center Plug is sold as ONE fin box only. 

Rail Sets are sold as TWO fin boxes. 

For a thruster set, order a Rail Set + Center plug. 

All plugs come WITHOUT screws.

Fin Box Angle
In stock

ships within 3–5 days

Free shipping on most US orders over $99 (Exclusions Apply)

30-day returns on unopened items

STOCKED IN COSTA MESA

Every brand here earned its
place on our shelf.

20+ Brands in stock

20+ Years manufacturing

50,000+ Boards built

COMMON QUESTIONS

Straight answers.

Orders & Shipping

Do you ship internationally?

Yes. We ship to Brazil, Australia, Indonesia, and beyond. For boards and larger volumes, contact the shop directly to coordinate freight. Accessories and supplies ship standard internationally.

How long does shipping take?

Accessories and supplies ship within 3–7 business days via USPS or UPS. Boards ship via specialized freight — transit time confirmed at order. Free shipping on US orders over $79.

Can I pick up my order?

Yes. Local pickup at 1777 Placentia Ave, Costa Mesa. Mon–Fri 8am–5pm · Sat 9am–2pm.

My order arrived damaged. What now?

Contact us within 48 hours with photos. We'll sort it out directly — no forms, no waiting. Calling the shop is fastest.

What payment methods do you accept?

Visa, Mastercard, Amex, Discover, PayPal, and Shop Pay. Custom builds require a $250 deposit to start.

Can I cancel or modify an order?

Contact us as soon as possible. If it hasn't shipped, we can adjust it. Once dispatched, our return policy applies. Custom builds can't be cancelled once work has started.

Customer Reviews

Boards & accessories

From the factory floor

4oz Fiberglass "E" Cloth

4oz Fiberglass "E" Cloth

4oz Fiberglass "E" Cloth

Fiberglass E-cloth is a premium woven fiberglass fabric designed for surfboard construction, providing lightweight strength, durability, and a smooth finish. Used with resin during lamination, it reinforces the foam core while maintaining flex and performance, making it ideal for both polyester and epoxy surfboards.

Rolled cloth ships in a long box (approx 36"). 

For custom cut to length quantities, please inquire. 

$5.00 USD Unit price $5.00 USD/yd

Pickup available at 1777 Placentia Avenue

Usually ready in 24 hours

View store information

4oz Fiberglass "E" Cloth

27" / 1 Yard Folded

1777 Placentia Avenue

Pickup available, usually ready in 24 hours

1777 Placentia Avenue
Costa Mesa CA 92627
United States

8323979038
MEKP Catalyst

MEKP Catalyst

MEKP Catalyst

Ensure a professional-grade cure with this high-quality MEKP (Methyl Ethyl Ketone Peroxide) catalyst. Specifically formulated for use with polyester resins and gelcoats, this essential hardener provides the reliable chemical reaction needed for consistent results in board building, composite repairs, and laminating projects.

Technical Specifications and Usage:

  • Compatibility: Designed exclusively for use with standard polyester resins and gelcoats.
  • Usage Warning: Do not use this catalyst with UV-stable or UV-curing resins.
  • Recommended Dosage: This catalyst is typically dosed at a ratio of 1% by volume, though environmental conditions may require slight adjustments.

Safety and Shipping Information:

Due to the chemical nature of Methyl Ethyl Ketone Peroxide, this product is classified for UPS Ground shipping only. Please note that hazmat shipping charges apply to larger volume containers to ensure safe and compliant delivery. Always handle with care and use appropriate safety equipment during application.

$4.75 USD

Pickup available at 1777 Placentia Avenue

Usually ready in 24 hours

View store information

MEKP Catalyst

1 oz

1777 Placentia Avenue

Pickup available, usually ready in 24 hours

1777 Placentia Avenue
Costa Mesa CA 92627
United States

8323979038
FCS II Fin Boxes - Black

FCS II Fin Boxes - Black

FCS II Fin Boxes - Black

The FCS II system requires no grub screws or keys to secure the fins to the board, it is an efficient keyless system for quick fin installation and release. Fins can be easily inserted and removed in seconds, allowing you to adapt your equipment to the conditions, on land and in the water.

Center Plug is sold as ONE fin box only. 

Rail Sets are sold as TWO fin boxes. 

For a thruster set, order a Rail Set + Center plug. 

All plugs come WITHOUT screws.

$10.80

Pickup available at 1777 Placentia Avenue

Usually ready in 24 hours

View store information

FCS II Fin Boxes - Black

0°-Center Plug (1)

1777 Placentia Avenue

Pickup available, usually ready in 24 hours

1777 Placentia Avenue
Costa Mesa CA 92627
United States

8323979038
Cab-O-Sil Fumed Silica 16oz

Cab-O-Sil Fumed Silica 16oz

Cab-O-Sil Fumed Silica 16oz

Cabosil Fumed Silica – Resin Thickener

Cabosil: Choose this when strength, bonding and a non-sagging resin mixture are the priority.

Cabosil is a lightweight fumed silica powder used to thicken resin for surfboard building and repair. Mix it into epoxy or polyester resin to create a thicker, non-sagging consistency that's easier to control and stays where you put it.

Especially useful for fin box and leash plug installations, filling gaps and voids, bonding, repairs, and vertical applications where straight resin would tend to run or sag.

Add Cabosil gradually until you reach the consistency needed for the job.

Great for: Fin boxes, leash plugs, bonding, gap filling, ding repair, and general surfboard construction.

A surfboard shop essential when you need to turn liquid resin into a strong, workable paste.

 

 

$8.50 USD

Pickup available at 1777 Placentia Avenue

Usually ready in 24 hours

View store information

Cab-O-Sil Fumed Silica 16oz

1777 Placentia Avenue

Pickup available, usually ready in 24 hours

1777 Placentia Avenue
Costa Mesa CA 92627
United States

8323979038