Anti-theft locking wheel bolts for alloy wheels / M14x1.5 conical seat / 28 mm thread, black – Carbonado C-Block

Locking wheel bolts M14x1.5, conical seat, 28 mm thread – black Carbonado C-Block

Wheel protection against theft

The Carbonado C-Block locking wheel bolts provide a simple and effective way to protect wheels against unauthorized removal. Each bolt has a specially shaped security profile matched to the appropriate key included in the set.

The locking bolts are made of steel with the dimensional precision required for correct wheel mounting.

M14x1.5 thread and 28 mm length

This bolt version features an M14x1.5 thread, a 28 mm threaded length and a conical seat. It can be used on vehicles and wheels requiring bolts with these mounting parameters.

Compatibility depends on the technical specifications of the specific vehicle and wheel. Before purchase, verify the thread diameter and pitch, required thread length and seat type.

Free-spinning protective sleeve

A freely rotating sleeve surrounds the shaped security element. It makes it more difficult to grip the bolt from the outside or use an unsuitable tool to remove it.

The combination of the special security profile and rotating sleeve increases wheel protection against attempted removal without the correct key.

Two keys included

The Carbonado C-Block set includes 2 keys (adapters) matched to the security profile of the bolts. The adapters are designed for use with 17 mm and 19 mm wrenches, making installation and removal easier with standard workshop tools.

The second adapter provides a practical backup in case one is lost and can be stored separately, for example outside the vehicle.

Black electrophoretic coating

The bolts are coated with black paint applied by an electrophoretic process (cataphoresis). This technology provides uniform surface coverage, including recesses and hard-to-reach areas, creating an even protective layer.

The coating increases resistance to corrosion, moisture and weather conditions, while providing a durable black finish that complements dark-colored wheels.

Correct bolt tightening

Locking wheel bolts should preferably be tightened using a torque wrench, which allows the correct tightening torque to be applied and ensures the proper clamping force on the wheel.

The torque should be selected according to the vehicle or wheel manufacturer's requirements. After driving approximately 100 km, the bolt tightening torque should be checked again and, if necessary, the bolts should be retightened to the required value.

Key features

• M14x1.5 thread,
• 28 mm threaded length,
• conical seat,
• special security profile protecting against unauthorized removal,
• free-spinning sleeve making it more difficult to grip the bolt with a standard tool,
• 2 security keys included,
• steel construction,
• black electrophoretic coating,
• increased resistance to corrosion, moisture and weather conditions,
• tightening with a torque wrench recommended,
• rechecking the tightening torque after 100 km recommended.