Mardarth 12x1.5 Radius Lug Nuts for Honda — 20‑Piece Chrome One‑Piece Closed‑End

Mardarth 20-piece 12x1.5 radius washer lug nuts are a one-piece, chrome-finish replacement set engineered to fit many Honda models including Accord, Civic and CR-V.

These lug nuts replace factory radius/ball-seat nuts and include integrated washers for a clean, OE-like appearance and consistent wheel clamping. Built as a single solid piece rather than a two-piece capped design, the set resists corrosion and simplifies installation when mounting stock wheels or factory-style rims. Each nut is closed-end with a 3/4" (19mm) hex, 1.38" (35mm) overall length, and ships as 20 pieces to cover four wheels plus spares.

Which Honda vehicles will these lug nuts fit?

They’re designed to match common Honda OE radius ball-seat specifications and are compatible with an extensive range of models across multiple years. Use the vehicle list below as a quick compatibility guide, and always verify thread pitch and seat type against your wheel or owner’s manual.

• Fits many Accords (1982–2014), Civics (1980–2021) and CR-Vs (2007–2014).
• Also compatible with Acura models like TL, TSX, RL, ILX, and Integra variants.
• Thread pitch 12x1.5 with radius/ball seat—direct replacement for several OEM part numbers.

How are these lug nuts constructed and why does that matter?

Each nut is manufactured as a one-piece solid design with an integrated washer and closed end. That construction eliminates the rust-prone split or capped joints found on two-piece designs and improves long-term durability under road and weather conditions.

• Material: High-quality metal with chrome finish for corrosion resistance.
• Tested: 72-hour salt-spray testing to demonstrate improved rust protection.
• Design: Closed-end prevents debris entry; one-piece reduces failure points.

What are the key specifications I need to know before buying?

Confirming the right thread pitch, seat type, and hex size avoids fitment problems. These Mardarth lug nuts have clear, measurable specs so you can match them with your wheels and lug wrench.

• Thread: 12mm x 1.5 (standard metric for many Honda applications).
• Hex: 3/4" (19mm) for common socket sizes; OAL: 1.38" (35mm).
• Seat type: Radius/ball seat with integrated washer; closed-end construction; chrome finish.

How easy is installation and which OEM parts do these replace?

These lug nuts are intended as direct replacements for factory nuts, making installation straightforward with standard tools. They match several OEM part numbers and are supplied in a convenient 20-piece set so you have enough for all wheels plus a spare.

• Direct replacement for OEM numbers like 90304SA0981, 90304SELT01, and others.
• Installation: use a 3/4" (19mm) socket; torque to vehicle manufacturer specifications.
• Qty: 20 pieces—enough for four wheels and extras for spares or full set swaps.

Who is this set for? If you own a Honda or Acura with factory radius/ball-seat wheels and need durable, OE-style lug nuts, this Mardarth 20-piece chrome set is geared toward DIYers, mechanics, and fleet owners who want a rust-resistant, one-piece replacement that keeps wheels secure and looking factory-fresh. Always double-check thread pitch and seat type before purchase to ensure correct fitment for your specific model and wheel type.