Closed Nut W/Cap, Ball Seat, 19 Hex, 27 Height, Radius 12, Galv

A closed-end wheel nut featuring a 12mm radius (ball) seat with a protective dome cap. The radius seat design matches OEM Honda and Acura wheel specifications, ensuring proper contact and preventing wheel damage. The galvanised finish provides excellent corrosion protection.

Radius Seat Explained

Unlike conical (tapered) seats, radius or ball seats have a rounded, bowl-shaped seating surface that matches the curved mounting area found in many Honda, Acura, and some European vehicle wheels. Using the correct seat type prevents wheel loosening and damage to the mounting surface.

Specifications

• Thread Options: M12×1.25 | M12×1.5 | M12×0.75 | M14×1.5 | M14×2.0 | 1/2" UNF
• Seat Type: Radius 12 (12mm ball/sphere seat)
• Hex Size: 19mm across flats
• Length: 27mm overall height
• Design: Closed dome with protective cap
• Finish: Hot-dip galvanised zinc coating
• Material: Grade 10.9 forged steel

Protective Cap Design

The closed dome end caps the wheel stud completely, protecting it from road salt, moisture, and debris. This extends stud life and provides a finished appearance.

Vehicle Compatibility

Commonly used on:

• Honda: Civic, Accord, CR-V, Fit/Jazz, Pilot (OEM wheels)
• Acura: TL, TSX, MDX, RDX, Integra (OEM wheels)
• Mercedes-Benz: Selected models with R12 ball seat wheels
• Audi/VW: Selected OEM wheels with radius seat requirements

Important Fitment Note

Radius seat nuts ONLY fit wheels designed for ball/sphere seats. They will not work with standard conical (60°) seat wheels. Check your wheel specifications or measure the existing nuts before ordering.