Mardarth 14mmx1.5 Spiked Closed-End Lug Nuts 24+1 Set — Matte Black, 72‑Hour Salt Spray Tested

Mardarth 24+1 14mmx1.5 black closed-end spiked lug nuts are a direct-fit, corrosion-tested replacement set that adds aggressive style and secure wheel fastening to 6-lug aftermarket wheels for Silverado, Sierra and many full-size trucks and SUVs.

These lug nuts combine styling with function: one-piece 14mmx1.5 threaded, 3/4" hex nuts with a 60° conical seat and closed spiked ends. They ship as a 24+1 set (24 lug nuts plus one key) finished in matte black and engineered to match common 6-lug aftermarket wheels used across GM, Ford, Toyota, RAM and other popular truck and SUV platforms. Built from durable materials and validated through salt spray testing, the set aims to resist corrosion while providing a bold, custom look.

Will these lug nuts fit my truck or SUV?

These lug nuts use a 14mmx1.5 thread pitch and a 3/4" (19mm) hex, designed for many 6-lug aftermarket wheels on full-size trucks and SUVs. Compatibility is broad but depends on your hub and wheel specifications — confirm thread pitch and seat type before purchasing.

• Thread pitch: 14mm x 1.5
• Hex: 3/4" (19mm)
• Seat type: 60° conical (tapered)
• Overall length: 4.4" (spike included)

How do these lug nuts install and will they require special tools?

Installation is straightforward because these are one-piece replacement lug nuts designed to act as a direct swap for compatible 6-lug wheels. You will use the included key (the +1 in the set) and a standard 3/4" socket or compatible impact tool; torque to your vehicle manufacturer’s specifications.

• One-piece construction for simple replacement
• Includes a matching key for the set
• Uses standard torque tools with a 3/4" socket
• Follow vehicle torque specs to avoid wheel damage

What materials and tests back their durability and corrosion resistance?

These lug nuts are manufactured from high-quality metal alloys and finished in a black coating engineered to resist road elements. They have undergone 72-hour salt spray testing, an industry-standard procedure that simulates extended exposure to corrosive conditions to help ensure longer life in harsh climates.

• High-strength alloy construction for secure clamping
• Black protective finish for weather resistance and style
• 72-hour salt spray tested to simulate multi-year exposure
• Closed-end design helps keep out moisture and debris

Why choose the spiked, closed-end design over standard lug nuts?

The spiked appearance gives a vehicle an aggressive, customized look while the closed-end body protects threads from dirt and moisture. This style is popular for owners who want a tougher aesthetic without sacrificing the protective benefits of a closed-end nut.

• Distinctive spike finish for a bold visual upgrade
• Closed-end prevents contaminants from entering threads
• Conical seat ensures proper wheel centering on tapered lug holes
• Fits aftermarket 6-lug wheel patterns common on full-size trucks

Who is this for: The Mardarth 24+1 14mmx1.5 black spiked closed-end lug nut set is aimed at truck and SUV owners who run 6-lug aftermarket wheels and want a durable, corrosion-tested alternative that improves appearance. It’s suited for do-it-yourself installers, customizers replacing factory-style lug nuts, and anyone who needs a full set with a matching key. Always verify thread pitch, seat type and torque requirements for your specific vehicle and wheel combination before installation.