Mishimoto MMLG-125-20LSL Aluminum Locking Lug Nuts M12x1.25 20pc Set Silver 50mm

Vehicle Fitment

• Universal - fits any vehicle equipped with M12 x 1.25 wheel studs. Commonly used on Subaru (WRX, STI, BRZ), Nissan (350Z, 370Z, GT-R, S13, S14), Infiniti (G35, G37, Q50, 2014+ Q60), and Suzuki models. Always verify compatibility with your specific wheel and wheel stud before purchase.

Fitment Notes

• Designed for vehicles with M12 x 1.25 threaded wheel studs. Not compatible with M12 x 1.5 or other thread pitches - see MMLG-15-20LSL for M12 x 1.5 applications.
• Conical (tapered) seat design fits many OEM and aftermarket wheels. Verify that your wheels use a conical seat before purchase - spherical or flat-seat wheels are not compatible.
• Not recommended for use with stock OEM wheels on most applications. Intended for aftermarket wheels compatible with the conical seat and open-ended lug nut design.
• Open-ended design: total length is 50mm. Verify that your wheel stud length is compatible - the open end allows for longer studs to pass through.
• Anodized finish care: avoid abrasive or corrosive cleaners and do not use power tools for installation or removal, as these will damage the anodized surface. Mishimoto does not warrant finish fading or tool-related damage.
• Available in black (MMLG-125-20LBK), blue (MMLG-125-20LBL), silver (MMLG-125-20LSL - this listing), red (MMLG-125-20LRD), and neochrome (MMLG-125-20LNC).

Features

• Each lug nut is machined from a single piece of 7075-T6 aircraft-grade aluminum - one of the highest-strength aluminum alloys available, offering ultimate tensile strength of 74,000-78,000 psi and minimum yield strength of 63,000-69,000 psi, exceeding the structural demands of performance wheel applications.
• Weighing only 0.8 oz (22.68 g) per nut, the set of 20 provides a substantial unsprung weight reduction compared to a full set of steel OEM lug nuts - a meaningful improvement for handling and rotational inertia on performance and track-focused builds.
• Open-ended design with a total length of 50mm accommodates extended wheel studs commonly used in motorsport and performance applications without limiting compatibility to a specific stud length.
• Conical seat geometry fits a wide range of OEM and aftermarket wheel seat profiles, providing secure, leak-free clamping without requiring tapered washers or adapters on compatible wheels.
• Knurled end on each lug nut allows for hand-tightening to thread engagement without tools - reducing installation time and the risk of cross-threading during wheel changes.
• Kit includes 4 locking lug nuts and a dedicated non-marring key socket - providing theft deterrence on all four road wheels. The non-marring socket is lined inside and out with soft plastic to protect both the wheel finish and the lug nut anodizing during installation and removal.
• Silver anodized finish provides a corrosion-resistant surface layer and a bright, clean appearance that complements both polished and painted aftermarket wheels.
• Installation difficulty rated Easy. Backed by the Mishimoto Lifetime Warranty.

Specifications

• Material: 7075-T6 aircraft-grade aluminum (single-piece machined)
• Thread Size: M12 x 1.25
• Seat Type: Conical (tapered)
• Design: Open-ended
• Length: 50mm (1.97 in)
• Weight per nut: 0.8 oz / 22.68 g
• Ultimate Tensile Strength: 74,000-78,000 psi
• Minimum Yield Strength: 63,000-69,000 psi
• Finish: Silver anodized
• Quantity: 20-piece set (16 standard + 4 locking)

Included Components

• 16x M12 x 1.25 aluminum lug nuts, silver anodized
• 4x Locking aluminum lug nuts, silver anodized
• 1x Non-marring socket (soft plastic-lined inside and out)
• 1x Non-marring locking key
• Mishimoto Lifetime Warranty

Product Description

The Mishimoto MMLG-125-20LSL is a 20-piece set of M12 x 1.25 aluminum locking lug nuts in a silver anodized finish, machined from 7075-T6 aircraft-grade aluminum - one of the strongest aluminum alloys in common use, with an ultimate tensile strength of 74,000-78,000 psi and minimum yield strength of 63,000-69,000 psi. This thread pitch is the standard used by Subaru (WRX, STI, BRZ), Nissan (350Z, 370Z, GT-R, S-chassis), Infiniti (G35, G37, Q50), and various Suzuki models, making this kit a popular choice for enthusiasts upgrading the wheel fasteners on these platforms as part of a wheel fitment or weight-reduction build. At just 0.8 oz (22.68 g) per nut, the full set of 20 represents a meaningful reduction in unsprung rotational mass compared to a set of steel OEM lug nuts - a tangible benefit for handling response and corner entry on performance-driven builds.

Each nut is machined from a single billet of 7075-T6 aluminum, resulting in a structurally consistent component with no weld seams or press-fit sections that could become failure points under clamping load. The open-ended design with a 50mm total length accommodates a wide range of wheel stud lengths including extended studs, and the knurled end enables fast hand-threading to engagement before final torquing. The conical seat fits a broad range of aftermarket wheel seat profiles. Four of the twenty lug nuts in the kit are locking units, secured with a unique key pattern and a dedicated non-marring socket that is soft-plastic lined on both interior and exterior surfaces - protecting both the wheel finish and the anodizing of the lug nuts during installation and removal. The silver anodized finish provides both corrosion resistance and a bright, clean appearance compatible with most wheel finishes.

This kit is specifically for M12 x 1.25 wheel studs. For M12 x 1.5 applications, see MMLG-15-20LSL. These nuts are designed for use with aftermarket wheels that use a conical seat - verify your wheel's seat type and the compatibility of the open-ended 50mm format with your specific wheel and stud configuration before purchase. Not recommended for use with most stock OEM wheels. The anodized finish should be maintained using non-abrasive cleaners, and the lug nuts should always be installed and removed using the provided non-marring socket or a quality hand tool - power tools will damage the anodizing. Covered by the Mishimoto Lifetime Warranty.