Gorilla Automotive 2163ETBC-11 Small Diameter ET Lock Lug Nuts 12mm x 1.50 Thread Black

The Gorilla Automotive 2163ETBC-11 is a small diameter extended thread spline drive lug nut designed for aftermarket wheels that require thin-wall sockets. This individual lug nut features a black chrome finish and M12 x 1.50 thread size, making it compatible with a wide range of vehicles including Toyotas, Hondas, and many other imports and domestic vehicles with this thread specification.

Key Features:

• Extended thread design with 1.6-inch overall length for additional thread engagement on thick aftermarket aluminum wheels
• Small diameter (.80-inch) spline drive design fits virtually all aftermarket tuner wheels
• 0.25-inch extended shank below the lug nut seat for extra thread engagement on short studs
• Manufactured from hardened, heat-treated steel for maximum strength and durability
• Black chrome finish provides corrosion resistance and sleek appearance
• Closed-end bulge design prevents rust, corrosion, and thread damage
• Conical 60-degree acorn seat for proper wheel fitment

Important Installation Notes:

• Requires Gorilla Standard Key for Small Diameter Spline Drive Lug Nuts (1921SD-KEY, sold separately)
• Key features dual hex drive: 3/4-inch (19mm) and 13/16-inch (21mm)
• Wheel lug bore must accommodate .62-inch diameter extended shank
• Extended shank must not bottom out on rotor—compressive force must be borne by the conical seat

This extended thread version is ideal for older vehicles with shorter wheel studs or thick aftermarket wheels that don't allow sufficient thread engagement with standard lug nuts. The spline drive system provides enhanced security while the black chrome finish complements modern wheel designs.