SKCOAUTO M14x1.5 Spline Lug Nuts 24-Piece Closed-End Set with Socket Key — 60° Conical, XL Spline

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

If you’re upgrading or replacing lug nuts on aftermarket 6-lug aluminum wheels, these SKCOAUTO spline lug nuts deliver a solid, single-piece design and precise M14x1.5 thread fit. The set includes 24 closed-end nuts plus a dedicated spline socket key, engineered specifically for wheels that require a 60° conical seating and XL spline tuner profile. They are not universal hardware — make sure your wheel studs and seat geometry match the listed specification before installation.

How do these lug nuts fit my wheels?

These lug nuts are sized for studs with an M14x1.5 thread pitch and a 60° conical seat. They are intended for aftermarket aluminum wheels that accept an XL spline diver-style lug nut; they will not fit mag seat, ball seat, or round seat wheels. Verify your wheel manual or measure the stud and seat before purchasing.

• M14x1.5 thread pitch compatible with many 6-lug systems
• 60° conical (taper) seat only — not for mag/ball/round seats
• XL spline tuner-style external profile — requires matching socket
• Set includes 24 nuts and one spline socket key for installation

What are the construction and corrosion resistance features?

The nuts use a one-piece solid construction instead of a two-piece capped design, reducing failure points and potential for rust at seams. SKCOAUTO reports salt spray testing to evaluate corrosion resistance, and the closed-end design helps prevent contaminant ingress into the threads. This construction improves longevity compared with some aftermarket capped nuts.

• One-piece solid metal body — fewer failure points
• Closed-end design to protect internal threads
• Salt spray tested to assess corrosion resistance
• Manufactured to consistent quality control standards

What are the exact dimensions and what’s included?

The set lists precise measurements to help you confirm fitment: total nut length is approximately 2.01 inches and width about 0.9 inches. Each pack contains 24 spline-style closed-end lug nuts and a single matching socket key to install and remove the nuts safely and securely. Keep track of thread pitch and seat shape when comparing to original equipment.

• Thread: M14 x 1.5
• Seat type: 60° conical
• Nuts per set: 24 pieces; plus 1 spline socket key
• Dimensions: ~2.01 in length, ~0.9 in width

How reliable is the warranty and quality control?

SKCOAUTO backs this product with a 12-month warranty and states that each unit is 100% new and inspected under their quality control processes. The solid one-piece design avoids the common rust and repair issues associated with two-piece capped lug nuts. If you encounter manufacturing defects, the warranty covers typical quality concerns within the stated period.

• 12-month limited warranty from SKCOAUTO
• 100% new units, quality-controlled production
• Solid design reduces rust and maintenance issues
• Includes installation socket key for correct fitment

Who is this for: This lug nut set is aimed at vehicle owners and installers using 6-lug aftermarket aluminum wheels that specifically require M14x1.5 threads and a 60° conical seat with XL spline tuner-style nuts. It’s a practical choice for tuners, custom wheel owners, and mechanics who want a closed-end, single-piece nut with a matching socket for secure installation. Do not buy this set if your wheels have mag, ball, or round seat types, or if your studs use a different thread pitch.