FLYCLE 14x1.5 Black Spline Lug Nuts 24pc Extended Closed-End M14x1.5 for 6‑Lug GM Trucks

This kit from FLYCLE replaces worn or mismatched lug nuts with a full set designed for vehicles that require 14x1.5 threads and a 60° conical seat. Each lug nut is a single-piece, 2" (50.8 mm) long closed-end acorn with a 7-spline drive and a special black corrosion-resistant finish. The package includes 24 lug nuts and the matching spline socket key for straightforward installation on compatible six-lug wheels.

Will these lug nuts fit my Silverado, Sierra, Tahoe or Yukon?

They fit many GM models that use 14x1.5 thread studs and accept a 60° conical seat. Compatibility is specific to model years and six-lug wheel configurations, so check your vehicle's wheel stud size and seat type before ordering.

• Common compatible vehicles: 1999–2022 Silverado 1500, 1988–2022 Sierra 1500 (6-lug), 1995–2022 Tahoe (6-lug), 1991–2022 Yukon.
• Also fits: 1999–2016 Escalade, 2008–2016 Enclave, 2009–2022 Traverse, and select Express/Suburban/Yukon XL models listed by year.
• Not compatible with 5-lug or non-conical-seat aftermarket wheels — confirm stud count and seat angle first.

How durable and secure are these one-piece extended lug nuts?

FLYCLE's lug nuts are cold-forged from SCM435 steel with heat treatment for strength, and the one-piece construction prevents caps from separating while driving. The closed-end acorn design protects threads from dirt and moisture, improving longevity under road exposure.

• Material: SCM435 cold-forged steel with heat treatment for toughness.
• Design: One-piece closed-end acorn prevents cap detachment and shields wheel studs.
• Finish: Black coating passes 72-hour salt spray testing for corrosion resistance.
• Dimensions: 2" (50.8 mm) length, 7-spline drive, 0.9" (23 mm) hex width.

What tools and torque specifications do I need for installation?

Installation uses the included 7-spline socket key to engage the lug nut flutes, then finish-tighten with a torque wrench. Use the vehicle or wheel manufacturer’s recommended torque values to avoid over- or under-tightening.

• Included accessory: 7-spline socket key for initial installation and removal.
• Recommended: Torque wrench for final tightening to manufacturer specifications.
• Pro tip: Hand-start each nut to avoid cross-threading, then torque in a star pattern.

What comes in the box and what support does FLYCLE offer?

The set contains 24 black spline lug nuts sized 14x1.5 and the matching spline socket. FLYCLE packages the kit securely and backs the product with 12 months of after-sales support for fitment or quality questions.

• Contents: 24 x 14x1.5 closed-end lug nuts plus 1 x 7-spline socket key.
• Packaging: Boxed set to prevent parts shifting in transit.
• Support: 12-month after-sales technical assistance from FLYCLE.

Who this set is for: This 24-piece FLYCLE kit is intended for owners upgrading or replacing lug nuts on six-lug aftermarket wheels that require 14x1.5 threads and a 60° conical seat — especially drivers of Silverado 1500, Sierra 1500 (6-lug), Tahoe (6-lug), Yukon, Escalade and similar GM trucks and SUVs. Choose this kit if you want extended-length, closed-end protection, a one-piece construction for durability, and a black corrosion-resistant finish to match your wheels and resist the elements.