INBOARD MARINE DESIGN HIGH SPEED FLAGS

DESIGNED AND MADE IN THE USA

Simple hardware.
Serious boating.

Clean, secure mounting designed around the towers and biminis found on boats and pontoons.

View the HSF 360Flag Mount

HIGH SPEED FLAGS

Ready to fly on boats, side by sides, golf carts, and many other recreational vehicles.

Carbon fiber, purpose-designed tube mounting, and a clean profile.

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INBOARD MARINE DESIGN

Marine hardware designed around the boat.

We design practical accessories for people who actually use their boats. Every product starts with the fit, the geometry, and the details that matter once you're on the water.

01

Purpose-built

Designed around real marine tube dimensions and real-world use.

02

Clean design

Hardware that looks at home on a modern performance boat.

03

Made to run

Carbon fiber and robust mounting hardware for high-speed boating.

OUR PRODUCTS

HSF 360 Mounts

Choose from two HSF 360 mount families. Each mount includes a 500 mm carbon-fiber pole and two flag clips. Flag not included.

AnyTube™ Mounts

Mount a flag to any tube! Universal sizing mounts to both round and square tubes.

Black HSF 360 AnyTube™ Mount installed on a boat tower
Black AnyTube™ Mount
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Black HSF 360 AnyTube™ Mount with carbon-fiber pole and tube straps
Black AnyTube™ Mount
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Angled view of the black HSF 360 AnyTube™ Mount
Black AnyTube™ Mount
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Front view of the black HSF 360 AnyTube™ Mount
Black AnyTube™ Mount
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Grey HSF 360 AnyTube™ Mount installed on a boat tower
Grey AnyTube™ Mount
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Grey HSF 360 AnyTube™ Mount with carbon-fiber pole and tube straps
Grey AnyTube™ Mount
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Angled view of the grey HSF 360 AnyTube™ Mount
Grey AnyTube™ Mount
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Front view of the grey HSF 360 AnyTube™ Mount
Grey AnyTube™ Mount
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IMD nut driver included with every AnyTube™ mount
Every AnyTube™ mount comes with the IMD nut driver for tightening the straps.

Features

  • Mounts securely to any tube on any tower, bimini, or roll cage from 1 to 3" in Diameter
  • Mounts to square and irregular shaped tubes
  • Speed tested up to 60 MPH!
  • Perfectly flies a 12"x18" flag!
  • Bimini Safe! Absolutely no exposed metal hardware
  • Pole base rotates 360° to enable a wide variety of installation locations
  • Made out of UV and weather resistant materials design to stand up to prolonged outdoor environments
  • Installs in less than a minute!
  • Includes a spring loaded knob for fast installation and removal of the flag pole
  • Includes 500mm carbon fiber pole and 2 flag clips
  • Does not include flag
  • Also works great on Side by Sides, Golf Carts, ATVs, and many other Recreational Vehicles!
  • AnyTube™ Mounting Instructions

ExactFit™ Mounts

Choose a mount matched to the tube size and location listed for your boat.

HSF 360 ExactFit™ mounted on a Nautique 1.5-inch bimini tube
Nautique 1.5" Bimini Mount
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Black HSF 360 ExactFit™ Nautique 1.5-inch bimini mount, side angle
Nautique 1.5" Bimini Mount
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Black HSF 360 ExactFit™ Nautique 1.5-inch bimini mount, opposite angle
Nautique 1.5" Bimini Mount
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Front view of black HSF 360 ExactFit™ Nautique 1.5-inch bimini mount
Nautique 1.5" Bimini Mount
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Close view of black HSF 360 ExactFit™ Nautique 1.5-inch bimini mount and clamp
Nautique 1.5" Bimini Mount
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Grey HSF 360 ExactFit™ mount for a MasterCraft tower tube
MasterCraft 2 3/8" Tower Mount
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Grey MasterCraft ExactFit™ mount with carbon fiber flag pole, angled side view
MasterCraft 2 3/8" Tower Mount
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Grey MasterCraft ExactFit™ mount with carbon fiber flag pole, reverse side view
MasterCraft 2 3/8" Tower Mount
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Front view of grey MasterCraft ExactFit™ mount and carbon fiber flag pole
MasterCraft 2 3/8" Tower Mount
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Grey MasterCraft ExactFit™ mount showing the inside of the tower clamp
MasterCraft 2 3/8" Tower Mount
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Grey MasterCraft ExactFit™ mount showing the opposite side of the tower clamp
MasterCraft 2 3/8" Tower Mount
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Both ExactFit™ options use the same single and two-pack pricing shown above.

Features

  • Mounts securely to the listed tower or tube size. Be sure to measure before ordering!
  • Perfectly flies a 12"x18" flag!
  • Speed tested to at least 40 MPH!
  • Bimini Safe! Absolutely no exposed metal hardware
  • Pole base rotates 360° to enable a wide variety of installation locations
  • Made out of UV and weather resistant materials design to stand up to prolonged outdoor environments
  • Installs in less than a minute!
  • Includes a spring loaded knob for fast installation and removal of the flag pole
  • Includes 500mm carbon fiber pole and 2 flag clips
  • Does not include flag
ORDER

Choose your HSF 360 mount

Select one of the AnyTube™ or ExactFit™ mounts below, then choose a single or two-pack.

Single$99
Two-Pack$178

Choose your product

We ship to the continental U.S. only. Shipping is $9.99. Enter a shipping address in Stripe Checkout with the state selected above; Stripe will collect your full billing and shipping addresses, name, and email.

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ABOUT

Engineering-minded marine and recreational products.

Inboard Marine Design, LLC develops accessories for inboard boats with an emphasis on fit, function, and clean design.

Proudly Made in Prior Lake, Minnesota

Founded in 2022

[email protected]

Designed for the boat. Built for the water.
CONTACT

Contact us for questions or support

Email us at [email protected] and include your boat year, make, model, and the tube/tower location you're working with.

Dealer inquiries Contact us for wholesale and dealer pricing. [email protected]