MIKKUPPA M14x1.5 Lug Nuts 32pcs - OEM Fit Black Closed End

In this review the MIKKUPPA M14x1.5 32-piece lug nut set is evaluated for owners of heavy-duty GM and Ram pickup trucks who need a direct OEM-style replacement. The bottom line: these lug nuts deliver a near-factory fit and strong one-piece construction that improves appearance and reduces cracking risk, making them a practical choice for 2008-2024 Chevy Silverado and GMC Sierra 2500/3500 and 2012-2024 Ram 2500/3500 owners who want reliable hardware and a black finish.

Key Features

• OEM fit: M14x1.5 thread and 60 degree conical seat provide correct engagement with factory wheels for a secure fit.
• One-piece design: The one-piece construction resists cracking and separation compared with two-piece styles, improving long-term durability.
• Closed end bulge style: Closed end design helps protect threads from dirt and road debris which can extend wheel hardware life.
• Corrosion protection: Zinc black finish passed a 72-hour salt spray test for improved resistance to rust and a consistent black appearance.
• Drive compatibility: 7/8' (22mm) hex allows common sockets to be used for installation and removal without specialty tools.
• Complete set: Thirty-two lug nuts cover 6- and 8-lug OEM wheel patterns for dual-vehicle or spare-ready replacement.

Who It's For

This set is aimed at drivers of heavy-duty pickups who need direct OEM-style replacements that match factory hardware, specifically owners of Chevy Silverado and GMC Sierra 2500/3500 models from 2008-2024 and Ram 2500/3500 models from 2012-2024. The clean black finish also appeals to those who want a refreshed look that still meets factory specifications.

Those who should look elsewhere include owners running non-OEM aftermarket wheels with different seat types or thread sizes, and drivers who prioritize a lifetime corrosion warranty from a premium stainless solution rather than a zinc black finish.

Pros & Cons

Pros

• Solid one-piece construction reduces the risk of cracking and separates from two-piece nuts.
• Direct OEM fit and listed OEM part numbers make compatibility straightforward for specified Chevy and Ram models.
• Zinc black finish provides improved corrosion resistance and a consistent black look after salt spray testing.
• The 7/8' hex is compatible with standard sockets for easy installation.

Cons

• Some customers reported rusting over time, so the zinc finish may not match stainless alternatives for long-term corrosion resistance.
• Scratch resistance received mixed feedback, so heavy curb contact may mar the finish.

Specifications

Thread	M14 x 1.5
Seat Type	60 degree conical (bulge style)
Hex Size	7/8' (22mm)
Height	1.75' (45mm)
Finish	Zinc black (72-hour salt spray tested)
Design	Closed end, one-piece
Fitment	2008-2024 Chevy/GMC 2500 3500; 2012-2024 Ram 2500 3500

Our Verdict

The MIKKUPPA 32-piece M14x1.5 lug nut set is a sensible value for owners needing correct OEM replacements with an improved one-piece construction and a black zinc finish. It fits specified Chevy and Ram heavy-duty trucks precisely and is a good choice for those who want factory-style hardware and a refreshed appearance, though drivers seeking the absolute best long-term corrosion resistance may prefer stainless options.

Frequently Asked Questions

Will these fit my 2015 Chevy Silverado 3500?
Yes, the M14x1.5 thread and 60 degree seat match OEM hardware for 2008-2024 Silverado 2500/3500 models.

Are these nuts closed end and do they protect the studs?
Yes, they are closed end bulge style which helps keep dirt and moisture off the stud threads.

Is the black finish resistant to rust?
The zinc black finish passed a 72-hour salt spray test for improved corrosion resistance, but some users reported corrosion after extended use so it is not equivalent to stainless steel.