Gorilla 8Lug 14-1.50 Spline Wheel Lug Nut Kit - Durable Black Finish

In this review the Gorilla 8Lug 14-1.50 Spline Wheel Lug Nut Kit is assessed for drivers who need a complete, vehicle-specific lug nut solution. The bottom line: this kit is best for owners of 8-lug wheels needing a solid, ready-to-install set with a keyed tool included. It stands out because the kit includes 32 lug nuts plus the matching 1378SD-KEY, making fitment and installation straightforward while the 60 degree conical seat and dual hex head sizes provide versatility for common truck and trailer wheel setups.

Key Features

• Complete kit: Includes 32 lugs and one 1378SD-KEY so a full wheel set is ready to install without buying separate pieces.
• 60 degree conical seat: The conical seat design helps center wheels and maintain consistent clamping on standard lug seats for reliable wheel retention.
• Thread size: The 14mm x 1.5 thread matches common metric wheel studs for correct, secure engagement.
• Overall length: At 2.00 in overall length the lugs provide enough engagement for most aftermarket and OE wheel designs without excessive protrusion.
• Dual hex head: Featuring 13/16 in (21mm) and 7/8 in dual hex sizes, the lug nuts accommodate different wrench options and make removal easier in the field.

Who It's For

This kit is aimed at truck and trailer owners running 8-lug wheel patterns who want a full, matched set of lug nuts in a black finish and a dedicated key. It is particularly useful for DIY mechanics who prefer buying a complete kit that includes the key needed to install and remove the spline-style nuts.

Those with non-8-lug wheels, unusual seat types, or non-metric thread pitches should look elsewhere, as the kit is specifically 8-lug with 14mm x 1.5 threads and a 60 degree conical seat. It is not intended for vehicles requiring tapered or flat seat nuts with different thread sizes.

Pros & Cons

Pros

• Complete 32-lug kit plus 1378SD-KEY makes installation straightforward and saves sourcing individual pieces.
• 60 degree conical seat helps ensure consistent wheel centering and reliable clamping.
• Dual hex head sizes provide flexibility when using different tools or sockets during maintenance.
• Black finish offers a clean, understated look that complements many wheel styles.

Cons

• Designed only for 14mm x 1.5 threads and 8-lug wheels, so it is not universal across all vehicles.

Specifications

Brand	GORILLA
Seat Type	60 Degree Conical Seat
Thread Size	14mm x 1.5
Overall Length	2.00 in
Hex Size	13/16 in (21mm) and 7/8 in Dual Hex
Kit Includes	32 Lugs and One 1378SD-KEY

Our Verdict

The Gorilla 8Lug 14-1.50 Spline Wheel Lug Nut Kit is a practical, value-oriented choice for owners of 8-lug metric wheels who want a complete set with a dedicated key. Its conical seat and dual hex head make installation and maintenance convenient, and the included key eliminates compatibility guesswork. It represents solid value for those with the matching wheel specification.

Frequently Asked Questions

Will these fit my 8-lug truck?
They will fit if your wheel studs are 14mm x 1.5 and use a 60 degree conical seat; confirm your vehicle specifications before purchasing.

Does the kit include a key for removal?
Yes, the kit includes one 1378SD-KEY to install and remove the spline-style lug nuts.

What wrench sizes work with these lugs?
The dual hex head accepts 13/16 in (21mm) and 7/8 in sockets or wrenches for flexibility during service.