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

Description

Bridge mismatched thread sizes in seconds. This precision-machined brass inverted-flare adapter converts a 1/2-20 female seat to a 9/16-18 male seat, forming a tight, vibration-resistant seal for dependable brake and hydraulic-line connections.

Key Benefits

Exact 45° flare geometry – mates perfectly with copper-nickel, coated-steel, or OE steel tube nuts for a leak-free fit.

Solid, corrosion-resistant brass – stands up to road salt, moisture, and brake fluid better than plated steel.

No sealant needed – metal-to-metal flare forms its own high-pressure seal; just torque to spec.

Versatile applications – ideal for master-cylinder upgrades, ABS retrofits, clutch hydraulics, custom line routing, and classic-car restorations.

Upgrade your hydraulic connections with confidence—add the AGS 1/2-20 × 9/16-18 brass adapter to your toolbox and keep every repair smooth and leak-free.

Specifications

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

Interchanges

Fairview Fittings: WH-7913
Raybestos Brake: WLA817
Edelmann: 258307
Papco: D7913
CARQUEST: 258307
Weatherhead: 7913
Coronet: 212-49
SUR&R Auto Parts: BR560
FMSI Universal: 4601