TAGMORE M14x1.5 Spline Lug Nuts 24pc — Black Closed-End, 7-Spline Key, 60° Conical Seat

These are a 24-piece set of TAGMORE M14x1.5 closed-end spline lug nuts in a black finish, engineered to fit many Chevrolet, GMC and related GM trucks and SUVs and supplied with a 7-spline removal key.

Precision-machined for correct fit and long wear, this lug nut kit includes tall, bulge-style nuts with a 60° conical seat and a secure closed end to protect wheel studs from corrosion and debris. The set ships with a 7-spline socket key that fits both 7/8" (22mm) and 13/16" (21mm) hex sizes, and each nut is produced under TAGMORE quality control with an extended salt-spray resistance test for durability.

Which models and years will these lug nuts work with?

These lug nuts were designed for many GM full-size and mid-size vehicles. They cover numerous Chevrolet and GMC platforms across multiple model years; always cross-check your wheel seat type and thread pitch before purchase.

• Common fits: Silverado 1500, Sierra 1500, Tahoe, Suburban, Yukon, Avalanche, Express 1500.
• Also compatible with: Traverse, Acadia, Colorado, Canyon, F-150, Expedition for specified years.
• Thread pitch: M14 x 1.5; seat style: 60° conical (bulge).

How do these lug nuts attach and what are the exact specifications?

Each nut is a tall, closed-end, bulge-style lug nut with an M14x1.5 thread pitch and a 60° conical seating angle for secure wheel contact. Their overall length gives extra thread engagement on extended studs or aftermarket wheels that require taller nuts.

• Nut overall height: approximately 2" (51 mm); body width: 0.9".
• Drive type: 7-spline internal; supplied key fits 7/8" (22 mm) and 13/16" (21 mm) hex.
• Quantity: 24 lug nuts per set, closed-end to keep out grime.

What materials and processes protect these lug nuts from corrosion and wear?

TAGMORE manufactures these lug nuts from quality alloy (08AL) and applies a plating process for improved chemical stability and abrasion resistance. Each fastener undergoes stringent quality checks and prolonged salt-spray testing to simulate long-term outdoor exposure.

• Base material: high-quality 08AL alloy with well-formed threads.
• Surface finish: plated for wear resistance and a long-lasting black appearance.
• Corrosion testing: full QC with a 72-hour salt-spray test for extended durability.

What tools and installation guidance should I follow?

TAGMORE recommends using a hand wrench or torque wrench for installation rather than an impact gun to avoid over-torquing or damaging the spline drive. Use the supplied 7-spline key to install or remove the nuts and always torque to the wheel manufacturer's recommended specification.

• Use hand or torque wrench; avoid impact tools when installing the nuts.
• Install with supplied 7-spline socket key (fits 22 mm and 21 mm hex sizes).
• Verify torque settings for your specific vehicle and wheel type after installation.

Who is this for: This 24-piece TAGMORE M14x1.5 kit is intended for DIY mechanics, wheel shops, and vehicle owners upgrading or replacing lug nuts on compatible Chevrolet, GMC and related GM models who want a secure closed-end spline design, a taller nut profile for greater thread engagement, and a corrosion-resistant finish with long-term durability testing. Confirm thread pitch and seat type for your wheels before ordering to ensure a safe fit.