AUTOPTIM M12x1.25 Open-End Lug Nuts 20pc Chrome — 60° Conical Seat, 3/4" Hex

AUTOPTIM M12x1.25 open end lug nuts are a 20-piece chrome, conical-seat replacement set engineered for reliable wheel fitment across many Nissan, Subaru and select Suzuki models.

This 20-piece set of M12x1.25 lug nuts by AUTOPTIM offers a one-piece, open-end design finished in triple chrome plating. Built from cold-forged, heat-treated steel and tested with a 72-hour salt-spray trial, these nuts are sized for a 60° conical seat and use a 3/4" (19mm) hex drive. They are intended as aftermarket wheel fasteners where the OEM thread and seat specification match, providing a durable, corrosion-resistant option for daily drivers and enthusiast vehicles alike.

Which cars will these lug nuts fit?

These AUTOPTIM lug nuts are specified for M12x1.25 threads with a 60° conical seat, which matches many Nissan, Subaru and a few Suzuki applications. Fitment depends on hub stud size, seat type and clearance for a 0.84" (21mm) nut height; always compare dimensions with your OEM parts.

• Nissan: 300ZX, 240SX, 350Z, 370Z, Sentra, LEAF, Altima, GT-R, Maxima (various years noted).
• Subaru: BRZ, Crosstrek, Forester, Impreza, Legacy, Outback, WRX, WRX STI and others listed.
• Some Suzuki models such as Kizashi when M12x1.25 is specified.
• Confirm stud thread pitch, seat angle and wheel clearance before installation.

How durable and corrosion-resistant are these lug nuts?

AUTOPTIM manufactures these lug nuts with cold-forging and heat treatment, then applies a triple-chrome finish to resist wear and rust. The set undergoes a 72-hour salt-spray test that simulates long-term exposure to corrosive environments, helping ensure consistent performance in everyday conditions.

• Cold-forged steel core for increased strength and crack resistance.
• Triple chrome plating for enhanced corrosion protection and shine.
• 72-hour salt-spray trial approximates multi-year environmental exposure.
• Open-end design allows use with longer wheel studs or locking lug nuts.

What are the key dimensions and installation notes?

Each nut uses an M12x1.25 thread, 60° conical seat, 3/4" (19mm) hex, with an overall height of 0.84" (21mm) and a width of 0.9" (23mm). Because these are open-end lug nuts, they accommodate extended studs and allow the use of locking lug nuts with internal shanks.

• Thread: M12x1.25 — verify against vehicle stud pitch.
• Seat: 60° conical — must match wheel seat geometry for safe clamping.
• Drive: 3/4" (19mm) hex — use a properly sized socket or torque wrench.
• Height & width: 0.84" (21mm) height, 0.9" (23mm) width — check wheel clearance.

Do these lug nuts require any special maintenance or service?

Routine inspection and correct torqueing are the main maintenance points for any wheel fastener. AUTOPTIM provides 12 months of customer support if you encounter fitment questions or post-purchase issues.

• Inspect for corrosion or damage during regular wheel service intervals.
• Use a calibrated torque wrench and the vehicle manufacturer’s torque specification.
• Replace any lug nut that shows cracking, stripped threads, or severe plating loss.
• Contact AUTOPTIM customer service within 12 months for assistance if needed.

Who is this for: The AUTOPTIM M12x1.25 20-piece open end lug nut set is suited to car owners and mechanics who need compatible aftermarket fasteners for Nissan, Subaru and select Suzuki models that use an M12x1.25, 60° conical seat. It’s a practical choice for drivers seeking a corrosion-tested, chrome-finished nut set that accepts extended studs or locking lug accessories. Always confirm thread pitch, seat type and clearance before purchase to ensure a safe match for your wheels and vehicle.