Brass Inverted-Flare Adapter 9/16-18 (Female) × 1/2-20 (Male)

Description

Make size transitions on hydraulic brake and clutch systems without compromise. This precision-machined brass inverted-flare adapter converts a 9/16-18 female seat to a 1/2-20 male seat, delivering a tight, leak-free seal in seconds.

Key Benefits

• Exact thread + flare geometry – ensures perfect mating with OE or aftermarket tube nuts; no guesswork, no leaks.

• Solid, corrosion-proof brass – outlasts steel in road salt and moisture, resists galvanic reaction with Cu-Ni and steel lines.

• DOT FMVSS 106 compliant – meets U.S. safety specs for hydraulic brake system fittings.

• Works with any 45° inverted flare – copper-nickel, PVF-coated steel, stainless, or OE steel tubing.

• No sealant required – metal-to-metal seat forms its own high-pressure seal; just torque to spec and go.

Typical Uses

Master-cylinder or ABS module retrofits

Custom brake-line routing on hot-rods and restorations

Replacing hard-to-find OE adapter blocks

Clutch-hydraulic conversions on performance builds

Swap lines, solve mismatched threads, and finish the job right—add this AGS brass adapter to your toolkit today.

Specifications

End 1 Type: 9/16 - 18 in
End 2 Type: 1/2 - 20 in
Finish: Zinc
Material: Brass
Thread Type #1: SAE

Interchanges

Fairview Fittings: WH-7912
Raybestos Brake: WLA909
Edelmann: 258306
Papco: D7912
CARQUEST: 258306
Weatherhead: 7912
Dynamic: 7912
FMSI Universal: 4602