MIKKUPPA 1/2-20 Lug Nuts 20pc — Black 60° Conical Bulge-Seat, SCM435 One-Piece Cold-Forged

These MIKKUPPA lug nuts are a 20-piece set of 1/2-20 closed-end bulge-seat wheel nuts engineered as one-piece, cold-forged steel replacements for many Jeep and Ford vehicles.

Designed for drivers who need durable, corrosion-resistant lug nuts that match common aftermarket wheel specifications, this set offers a direct-fit replacement with a 60° conical seat and a 3/4" (19mm) hex. Each nut measures 1.4" (35mm) long with a 0.87" (22mm) outer diameter, and the set comes in black finish. Built from SCM435 steel, heat treated and salt-spray tested, these lug nuts prioritize strength and longevity for street and off-road use.

Will these lug nuts fit my Jeep or Ford wheels?

MIKKUPPA lug nuts use a 1/2-20 thread pattern and a 60° conical (bulge) seat, which is a common specification for many aftermarket wheels and OEM applications. Check your wheel’s thread pitch and seat type before ordering to ensure compatibility.

• Thread: 1/2-20 (UNF)
• Seat: 60° conical / bulge style
• Head hex: 3/4" (19mm)
• Length and width: 1.4" (35mm) long, 0.87" (22mm) outer diameter

How durable and corrosion-resistant are these lug nuts?

These lug nuts are cold-forged from SCM435 alloy steel and heat treated for greater tensile strength and wear resistance. A 72-hour salt spray test is part of the manufacturing claims, indicating increased protection against rust in typical road and salt-exposed conditions.

• Material: SCM435 cold-forged steel
• Heat treatment for improved hardness
• 72-hour salt spray tested for corrosion resistance
• Closed-end design helps keep debris and moisture out of threads

What makes the MIKKUPPA one-piece design better than two-piece alternatives?

The one-piece construction eliminates joints or separate sleeves that can loosen or corrode over time, making the nut less susceptible to aging or failure. That simplicity increases reliability while reducing the number of components that could seize or strip.

• Solid one-piece body resists separation and wear
• Reduced risk of thread damage and component fatigue
• Closed-end prevents internal contamination
• Consistent torque characteristics compared with multi-piece designs

How do I install and torque these lug nuts safely?

Use a proper 3/4" (19mm) socket and follow vehicle manufacturer torque specs for wheel nuts; over-tightening can damage studs and under-tightening risks wheel loosening. Tighten in a star/crisscross pattern and recheck torque after driving a short distance.

• Tool: 3/4" (19mm) socket or wrench
• Tightening: follow vehicle OEM torque spec
• Pattern: star/crisscross sequence for multi-lug wheels
• Re-check torque after 25–50 miles (40–80 km)

Who is this for: This 20-piece MIKKUPPA lug nut set is aimed at owners of compatible Ford and Jeep models, aftermarket wheel fitments, and anyone who wants a rugged, single-piece replacement that resists corrosion and simplifies maintenance. It’s a practical choice for daily drivers, off-road enthusiasts, and shops that need reliable, economy-priced lug nuts in bulk. If you’re matching wheels with a 1/2-20 thread and a 60° bulge seat, this set gives a durable, closed-end option backed by MIKKUPPA’s 12-month support.