818-08-BLK -8 Tube Nut | Black Anodised

Speedflow 818-08-BLK | -8 Tube Nut — Black Anodised

Step up to a larger bore hard line connection with the Speedflow 818-08-BLK — a -8 AN compression-style tube nut designed to convert steel or aluminium hard line tubing to standard -8 AN fittings. The -8 AN size is a popular choice for higher-flow fuel, oil, and coolant hard line circuits in motorsport and performance automotive builds. Flare your tubing to 37°, fit the matching sleeve, and thread onto any standard -8 AN female fitting for a clean, professional, leak-free connection — no welding or brazing required.

Why Choose the Speedflow 818-08-BLK?

• Compression-style tube nut — converts steel or aluminium hard line tubing to -8 AN fittings quickly and cleanly
• 37° JIC/AN flare compatible — requires tubing to be flared with a standard 37° flaring tool for a positive, leak-free seal
• Black hard anodised aluminium — corrosion and fluid resistant with a clean, professional finish
• -8 AN thread — mates with all standard -8 AN female fittings, adapters, and bulkheads
• Higher-flow -8 AN bore — suited to fuel, oil, and coolant hard line circuits that demand greater flow capacity than -6 AN
• Lightweight at just 12g — minimal weight impact for race and performance builds
• Sold individually — order the exact quantity needed for your build

Ideal Applications

High-flow fuel hard line fabrication, oil feed and return hard lines, coolant circuit hard lines, power steering hard lines, and any -8 AN hard line plumbing circuit requiring a compression tube nut.

Important Note

A matching Speedflow tube sleeve and a 37° flaring tool are required for correct installation. The tube must be flared before fitting the sleeve and nut.

Specifications

• Part Number: SF818-08-BLK
• AN Size: -8 AN
• Type: Compression Tube Nut
• Flare Angle: 37° JIC/AN
• Finish: Black Hard Anodised Aluminium
• Weight: 12g

Stock held locally in Perth, WA — fast dispatch Australia-wide.