EZISOE Spline Lug Nuts M14x1.5 32PCS for 8‑Lug Ford Chevy GMC — 2-inch Black SCM435 Steel, 60° Conical

These spline lug nuts come as a full set of 32 pieces plus a dedicated socket key, made from cold‑forged SCM435 steel and finished with a multi‑layer black coating for corrosion resistance. They are sized for 2" height with a 0.9" (23 mm) hex clearance and are designed specifically for 8‑lug 2500/3500 class trucks from Ford, Chevrolet and GMC where the wheel seat is a 60° conical type. This listing clarifies fitment, materials, installation guidance and what to check before buying to ensure safe, correct fit.

How do I confirm these lug nuts will fit my truck?

Fitment depends on three measurable factors: thread pitch (M14x1.5), the wheel’s seat type (60° conical), and whether your wheels have 8 lug holes. Verify the factory specifications for your model year and inspect one existing nut or the wheel hub for thread and seat type before ordering.

• Compatible thread: M14 x 1.5 metric pitch.
• Seat shape required: 60° conical (not ball, mag, rounded or flat).
• Vehicle examples: Ford F‑250/F‑350 (2003–2024), Chevy Silverado 2500/3500 (2001–2024), GMC Sierra 2500/3500 (2001–2024).
• Confirm hex clearance and installation depth on your wheels.

What makes these lug nuts durable and secure?

Each nut is cold‑forged and heat‑treated from SCM435 alloy steel, delivering high tensile strength and wear resistance appropriate for heavy‑duty use. Precision machining ensures consistent threads and seating, while the layered black finish helps limit rust and cosmetic wear under road conditions.

• Material: SCM435 heat‑treated steel for strength.
• Manufacture: precision machined threads for a secure fit.
• Finish: multi‑layer black coating for corrosion resistance.
• Included: dedicated spline socket key to avoid using incorrect tools.

How should I install and torque these spline lug nuts safely?

Installation is straightforward with the included spline socket key, but avoid impact wrenches to prevent thread or finish damage. Use a hand wrench and follow your vehicle manufacturer’s torque specs; re‑check torque after the first 50–100 miles of driving.

• Tool: use the supplied spline socket key and a hand torque wrench.
• Do not use electric impact wrenches to protect threads and finish.
• Torque to factory specifications and re‑check after initial drive.
• Height: 2" overall — verify clearance inside wheel barrels.

What comes in the package and what warranty covers it?

The kit provides 32 spline lug nuts plus one socket key so you have a complete set for two‑axle 8‑lug wheels. EZISOE backs the product with a 1‑year warranty and offers free replacement for quality defects with responsive customer support.

• Contents: 32 lug nuts + 1 spline socket key.
• Hex clearance: 0.9 in (23 mm).
• Seat angle: 60° conical seat for compatible wheels.
• Warranty: 1‑year free replacement for manufacturing issues.

Who is this for: These lug nuts are aimed at owners of heavy‑duty 8‑lug trucks (Ford F‑250/F‑350, Chevy Silverado 2500/3500, GMC Sierra 2500/3500) who need a full replacement or upgrade set that matches M14x1.5 threads and a 60° conical wheel seat. If you have aftermarket wheels, confirm seat type, hex clearance and installation depth before purchase. Ideal for professional mechanics, fleet managers, and truck owners who prefer a robust, long‑lasting lug nut with a clean black finish and a dedicated socket key for secure installation.