Gorilla Automotive SPK5-12150B Spline Spike Lug Nuts - 12x1.50 Black 20-Pack

The Gorilla Automotive SPK5-12150B Small Diameter Spline Spike Lug Nuts combine aggressive styling with secure wheel protection. These black-finished lug nuts feature a unique spline drive system that requires a special key for installation and removal, providing an effective deterrent against wheel theft while adding a bold spike appearance to your wheels.

Key Features:

• Thread size: M12 x 1.50 metric thread pitch
• Small diameter design for aftermarket wheels with tight lug hole tolerances
• Spline drive security system requires included 13/16" & 7/8" dual socket key
• Heat-treated steel construction improves finish durability and corrosion resistance
• Distinctive spike profile adds aggressive styling
• Black finish complements dark wheels and modern vehicle aesthetics
• Complete set includes 20 lug nuts plus one 1378SPK-KEY installation tool

This kit provides a complete 5-lug, 4-wheel solution for vehicles with M12 x 1.50 thread specifications. The small diameter body is specifically designed for most aftermarket wheels and may not be compatible with original equipment factory wheels due to clearance restrictions. Heat treatment process enhances the finish quality and extends the life of the lug nuts in harsh weather conditions.