Gorilla Automotive 40038ET E-T Bulge Open End Lug Nut 12mm x 1.50 Thread 3/4" Hex Zinc

The Gorilla Automotive 40038ET E-T Bulge Open End Lug Nut is designed for vehicles requiring a 12mm x 1.50 thread pitch. These lug nuts feature an extended thread (E-T) design with a distinctive bulge seat configuration for proper wheel mounting and security.

Key Specifications:

• Thread Size: 12mm x 1.50 metric
• Hex Size: 3/4 inch (19mm) for standard lug wrenches
• Seat Type: Bulge acorn seat for aftermarket wheels
• Open End Design: Allows clearance for extended wheel studs
• Finish: Zinc plating for corrosion resistance
• Sold individually in bulk packaging

The E-T (Extended Thread) design provides additional thread engagement for wheels with thicker mounting surfaces or aftermarket applications. The bulge acorn seat ensures proper centering and contact with the wheel's lug hole. The open-ended configuration accommodates wheels where studs extend beyond the nut, making these ideal for racing wheels and custom applications.

Important: Verify your vehicle's thread pitch and required seat type before ordering. Most domestic vehicles use 1/2"-20 or 14mm x 1.5 threads, while many imports use 12mm x 1.5 or 12mm x 1.25. Ensure your wheels require a bulge acorn seat rather than conical or flat seats.