Closed Nut With Shank, 21 Hex, 34 Height, Galv

A heavy-duty closed-end wheel nut designed for commercial vans, trucks, and fleet vehicles. Features an oversized 21mm hex head for high-torque tightening, plus a 34mm extended shank that ensures accurate wheel centring on commercial hubs. Forged from Grade 10.9 steel and hot-dip galvanised for exceptional corrosion resistance in harsh UK road conditions.

Specifications

• Thread/Seat: M12 × 1.25 / 1.5 / 1.75 or M14 × 1.5 / 2.0 with 60° tapered conical seat for secure wheel contact
• Hex Head: 21mm across flats, commercial-grade size for higher torque loads
• Length/Profile: 34mm overall height for deep thread engagement and precise centring
• Design: Closed dome end protects stud tips from dirt, salt, debris, and moisture
• Material: Hot-dip galvanised zinc coating, significantly more durable than standard zinc plating
• Finish: Forged Grade 10.9 high-tensile carbon steel

Vehicle Compatibility

Suitable for commercial vehicles requiring a 21mm hex and M12/M14 tapered seat nuts, including:

• Ford Transit
• Mercedes Sprinter
• VW Transporter
• Renault Master
• Many other van and fleet platforms

Installation Notes

Torque in a star pattern.

Typical values:
• M12: 80–100 Nm
• M14: 110–130 Nm

Re-torque after 50–100 miles. Ensure the hub face is clean and free of debris.