If you’re a Ford C-MAX owner, one important maintenance item is knowing the proper lug nut size and torque specs for your vehicle. Getting this right ensures your wheels are securely fastened and prevents issues like vibration, wheel separation, and uneven tire wear down the road.

What size are Ford C-MAX lug nuts?

The lug nut size for the Ford C-MAX is M12 x 1.5. This indicates the lug nuts have a 12mm diameter thread with a 1.5mm thread pitch. The socket size needed to fit these lug nuts is 19mm.

Torque is critical when tightening lug nuts. Under-tightened lug nuts can allow the wheel to become loose over time. Over-tightening can stretch or snap the studs. For the Ford C-MAX, the recommended lug nut torque is 100 ft-lbs (135 N-m). Always use a torque wrench and tighten in a star or criss-cross pattern to ensure even clamping force.

While the factory lug nuts are functional, many C-MAX owners choose to upgrade to aftermarket lugs for added security, aesthetics, and peace of mind. BONOSS lug nuts are among the best aftermarket options thanks to their high-strength construction and advanced design features.

What Size Are the Lug Nuts on a Ford C-MAX?

Why BONOSS Aftermarket Lug Nuts are the Best for Your Ford C-MAX?

BONOSS lug nuts are manufactured from forged 50BV30 steel, which provides excellent strength and durability. These lugs have an ISO Grade 12 rating and proof load capacity of over 105,700 Newtons – among the highest ratings available.

But sheer strength alone isn’t enough. BONOSS lug nuts incorporate innovative design elements that put them a step above the competition:

Anti-Theft Design. Included with every BONOSS lug nut set are four special wheel locks with a heptagon (7-sided) head pattern and dual hex socket. This unique head design deters theft attempts using standard sockets or lock removal tools.

10-Year Warranty. While most manufacturers offer just 1-year coverage, BONOSS lug nuts come backed by an outstanding 10-year warranty against manufacturing defects. This demonstrates their confidence in the product’s quality and longevity.

Whether you’re looking to upgrade for added safety, improved styling, or simply peace of mind, BONOSS aftermarket lug nuts check all the boxes for the Ford C-MAX. Their uncompromising construction, ingenious anti-theft design, and industry-leading warranty make them the smart choice for this popular crossover.