SKCOAUTO M14x1.5 Spline Lug Nuts 24 Pc Closed-End for 6-Lug Wheels — XL Spline, Socket Key Included

SKCOAUTO M14x1.5 spline lug nuts are a set of 24 closed-end, XL spline-style wheel nuts with a matching socket key designed for 6-lug aftermarket aluminum wheels that use a 60° conical seat.

These lug nuts are engineered for vehicles that require 14mm x 1.5 thread pitch and a 60° conical (tapered) seating angle. The one-piece solid construction avoids the corrosion and failure points of two-piece capped designs, and the closed-end bodies help protect wheel studs from contaminants. This package includes 24 lug nuts and one dedicated spline socket key for installation and removal.

How do these lug nuts fit my wheels and studs?

They are intended specifically for wheels and vehicles that use an M14 x 1.5 stud with a 60° conical seat. They will not work with wheels that require mag, ball, or round seating types.

• Mating thread: 14mm x 1.5 pitch
• Seat type: 60° conical (taper)
• Compatible wheel bolt pattern: designed for 6-lug aftermarket aluminum wheels
• Not compatible with mag seat, ball seat or round seat wheels

What are the physical specifications and design benefits?

Each nut is an XL spline tuner style, closed-end, duplex design finished and measured for consistent fit. The solid one-piece body improves durability compared with two-piece capped nuts and resists internal rusting.

• Total length: 2.01 inches (approx.)
• Width across flats: 0.90 inches (approx.)
• Quantity: 24 lug nuts + 1 socket key
• Closed-end construction protects studs from dirt and moisture

How do I install and remove these spline lug nuts?

Use the included spline socket key with a torque wrench or breaker bar sized for the key. Tighten to your vehicle manufacturer’s wheel torque specification and check torque after initial driving miles.

• Use the provided socket key for engagement with the spline pattern
• Apply manufacturer torque spec — do not overtighten
• Recheck torque after 50–100 miles or after wheel service

What durability and warranty protections are included?

These lug nuts are manufactured to resist corrosion and are tested for environmental exposure. The one-piece solid design reduces rust pathways compared with multi-piece caps, and the product is covered by a limited 12-month warranty.

• Salt spray tested for corrosion resistance
• Solid, single-piece construction for improved longevity
• 12-month warranty from SKCOAUTO against manufacturing defects

Who is this for: These M14x1.5 spline lug nuts suit vehicle owners upgrading to or maintaining 6-lug aftermarket aluminum wheels that require a 60° conical seat and 14x1.5 thread. They’re a fit for tuners, daily drivers, and anyone who prefers closed-end spline nuts for cleaner wheel stud protection and a strong single-piece design. If your wheels require mag, ball or round seats, choose a lug nut specified for those seating types instead.