Lujiani Wheel Lug Bolt M14x1.5 40mm Shank Black Hex Bolt Pack of 20

Description

Product Overview

The Lujiani M14x1.5 wheel lug bolt is engineered for automotive enthusiasts and professional mechanics who demand precision, durability, and consistent performance. Each bolt features a 40mm shank length, providing ample thread engagement for a secure connection between the wheel hub and the vehicle’s axle. The bolt is finished with a matte black oxide coating that not only enhances corrosion resistance but also adds a sleek, understated aesthetic that complements a wide range of wheel designs.

Manufactured from premium 40CR alloy steel, the bolt meets and exceeds original equipment (OE) specifications for tensile strength, hardness, and fatigue resistance. The material composition ensures the bolt can withstand the high torque loads typical of modern performance vehicles while maintaining its structural integrity over the lifespan of the vehicle. The hex head, sized at 17mm across the flats, offers a comfortable grip for standard impact or torque tools, allowing for quick installation and removal without compromising the bolt’s geometry.

Designed as a one‑piece forged component, the lug bolt eliminates the risk of bolt expansion or cracking that can occur with multi‑piece assemblies. This monolithic construction provides a stable, uniform pressure bearing capacity, which translates to a tighter, more reliable fit on the wheel hub. The 60-degree conical seat further enhances the connection by ensuring even load distribution across the mating surfaces, reducing the likelihood of wheel wobble, noise, or premature wear.

Usage

The Lujiani wheel lug bolt is suitable for a broad spectrum of passenger cars, light trucks, and SUVs that utilize M14x1.5 thread specifications. It is particularly well‑matched with models from BMW (including X3, X5, and 7 Series), Mercedes‑Benz (GLK 350 and related platforms), and other European manufacturers that require a high‑strength lug bolt for their alloy wheels. Whether you are performing a routine tire rotation, replacing a damaged wheel, or upgrading to a set of performance wheels, this bolt provides the confidence that the wheel will remain securely attached under all driving conditions.

Installation is straightforward: after lifting the vehicle and removing the existing wheel, align the bolt holes on the hub with the wheel’s lug holes, insert the bolt, and tighten to the manufacturer‑specified torque using a calibrated torque wrench. The hex head design allows for rapid torque application, while the black oxide finish protects the bolt from road salts, moisture, and temperature fluctuations that can accelerate corrosion.

For aftermarket wheel installations, the bolt’s 40mm shank length offers flexibility in accommodating varying wheel thicknesses and offset requirements. The partially threaded design ensures that the threaded portion engages fully with the hub, while the unthreaded shank provides a solid bearing surface that distributes load evenly across the wheel’s mounting surface.

Why Choose Us

Choosing Lujiani means selecting a brand with a proven track record in automotive fastener technology. Our bolts undergo rigorous quality control processes, including heat treatment, hardness testing (Rockwell B70), and dimensional inspection to guarantee that each piece conforms to the highest industry standards. The combination of premium alloy steel, a one‑piece forging process, and a precision black oxide coating results in a product that delivers exceptional performance, longevity, and aesthetic appeal.

We stand behind our products with a comprehensive warranty and responsive customer support. If you encounter any issues with fit, finish, or performance, our technical team is ready to provide guidance, replacement parts, or a full refund in accordance with our warranty policy. This commitment to after‑sales service underscores our confidence in the durability and reliability of every Lujiani lug bolt we ship.

In addition to the core product, we offer a range of complementary accessories, such as torque wrenches, wheel spacers, and installation guides, to ensure that you have everything you need for a successful wheel upgrade or replacement project.

Key Features

• Premium 40CR alloy steel construction provides superior strength and fatigue resistance.
• One‑piece forged design eliminates expansion and cracking, ensuring a stable, long‑lasting connection.
• Matte black oxide finish protects against corrosion and adds a sleek, professional look.
• 60° conical seat delivers even load distribution, reducing wheel wobble and noise.
• Dedicated customer support and warranty give peace of mind for every purchase.

FAQ

What vehicles are compatible with this lug bolt?

The bolt is compatible with many BMW and Mercedes‑Benz models that use an M14x1.5 thread, including the X3 (E83), X5 (E53), 7 Series (EBX), and GLK 350. Always verify the wheel hub specifications of your specific vehicle before purchase.

How do I determine the correct torque setting?

Refer to your vehicle’s service manual for the recommended torque value. Typically, lug bolts of this size require a torque of 120–130 Nm (88–96 ft‑lb). Use a calibrated torque wrench to achieve accurate tightening.

Can I use these bolts with aftermarket wheels?

Yes. The 40mm shank length and partially threaded design accommodate a wide range of aftermarket alloy wheels. Ensure the wheel’s bolt pattern matches the M14x1.5 specification and that the wheel’s thickness does not exceed the bolt’s capacity.

What is the benefit of the black oxide coating?

The black oxide coating provides excellent corrosion resistance, especially in harsh environments with road salt or moisture. It also offers a durable, low‑glare finish that reduces the visibility of scratches and wear.

What warranty does Lujiani offer?

Lujiani provides a limited one‑year warranty covering material and workmanship defects. If a bolt fails within the warranty period under normal use, we will replace it or issue a refund, subject to proof of purchase.

With over 59,000 satisfied customers in the automotive sector and a top ranking in the wheel bolt category, Lujiani continues to set the standard for high‑performance fastening solutions. Choose the Lujiani M14x1.5 wheel lug bolt for unmatched reliability, strength, and peace of mind on every drive.