Dynofit Hex Wheel Bolt 45mm Black Alloy Steel

Description

Product Overview

Dynofit’s hex wheel bolt is engineered for demanding automotive applications. Made from SCM435 cold‑forged alloy steel, the bolt meets Grade 10.9 strength standards and features a black electrophoresis coating that resists rust and corrosion. With a 45mm shank, 72mm overall length, and a 17mm hex head, it fits vehicles requiring an M12x1.5 thread and a 60° conical seat. The package includes 20 bolts, each tested for durability and fit.

Usage

These bolts are ideal for installing aftermarket wheels with spacers on BMW models from 1991‑2013, as well as other vehicles that share the M12x1.5 thread specification. They are suited for both professional mechanics and DIY enthusiasts who prefer hand tools over impact wrenches to avoid over‑torquing.

Why Choose Us

Dynofit combines rigorous quality control with real‑world testing. Each bolt undergoes a 72‑hour salt‑spray test to verify corrosion resistance, and the anti‑cracking design ensures the wheel remains securely attached under high stress. Our commitment to precise machining and surface treatment reduces the risk of scratches during installation.

Key Features

• Cold‑forged SCM435 alloy steel for high tensile strength
• Black electrophoresis finish provides superior rust protection
• 60° cone seat and M12x1.5 thread ensure perfect fit for BMW aftermarket wheels
• 20‑piece pack eliminates the need for frequent reordering
• Hand‑tool recommended installation to prevent over‑torquing

FAQ

Can these bolts be used on OEM wheels?

No, they are designed specifically for aftermarket wheels with spacers and a 60° cone seat, not for original equipment manufacturer (OEM) wheels.

Is an impact wrench safe for installation?

We recommend using a hand wrench. Impact tools can over‑tighten the bolt, potentially damaging the thread or compromising the cone seat.

What vehicles are compatible?

The bolts fit BMW models from 1991‑2013 that use M12x1.5 threads with a 60° conical seat, such as the M3 (1991‑2013) and M5 (1998‑2010).

How does the anti‑rust coating compare to painting?

The black electrophoresis coating provides a uniform, durable barrier that outperforms traditional paint by preventing corrosion at the molecular level.

What is the warranty on these bolts?

Dynofit offers a one‑year limited warranty covering material defects and manufacturing errors.