EXACT FACTORY SPECIFICATIONS: Includes 32 Pcs Spike Spline Style Lug Nuts with 9/16"-18 Threads ｜ 4.40" Long ｜ Truck Spline Hex ｜ 60° Conical Seat ｜ One-Piece Heat-Treated Carbon Steel with Premium Chrome Finish. Always use COYOTE CONFIRMED FIT to validate compatibility. PRECISION FITMENT ENGINEERED FOR AFTERMARKET WHEELS. Compatible on vehicles with 9/16"-18 threads as found on Chevrolet 1981-86 C20 1978-86 C30 1975-86 K20 1978-86 K30 ｜ Dodge 2006-08 Ram 1500 1994-2010 Ram 2500 1994-2010 Ram 3500 ｜ Ford 1975-98 F-250 1982-97 F-350 ｜ GMC 1979-86 C3500 1979-86 K2500 1977-78 K35 1979-86 K3500 ｜ Ram 2011 2500 2011 3500 Confirm compatibility with AMAZON CONFIRM FIT. FOR AFTERMARKET WHEELS Only DESIGNED & TESTED IN USA: Truck Spline Hex Spike Lug Nuts engineered specifically for aftermarket wheels. One-piece construction delivers strong, consistent clamping force and long-term durability under heavy loads and daily driving conditions. RELIABLE PERFORMANCE & CORROSION RESISTANCE: Features multi-layer chrome plating tested for 72-hour salt-spray protection against rust and corrosion. Built from cold-forged carbon steel with precise 9/16"-18 threads and manufactured to strict SAE standards for safety and performance. COMPLETE 32 Pcs SET: Complete 32-piece chrome lug nut kit with 60° conical seats, ready for direct installation. Improves truck appearance and maintains secure, long-term wheel performance. Wheel Accessories Parts 32 Pcs 9/16"-18 Thread Spike Spline 4.40" Long Lug Nuts Chrome Truck Spline Hex Fits Ram 2500 3500 ｜ Ford F250 F350 ｜ Chevrolet GMC C20 K20 K30 K35 C2500 C3500