Dismantling Cam Lock Connectors: Loosening the Cam with a Half Turn to Separate Cabinet Panels Without Damage

March 8, 2026

A cam lock connector is a detachable joining fitting for furniture construction that releases the connecting dowel with a half turn of the cam, enabling damage-free dismantling of cabinet components.

Anyone looking to professionally dismantle wardrobes, chests of drawers, or desks will almost inevitably encounter the classic cam lock fitting. These carcass connectors are the industry standard for joining carcass parts made of chipboard or MDF securely yet reversibly. In contrast to glued joints, demountable furniture connectors can be separated and reassembled as often as needed, provided the dismantling is carried out technically correctly.

This guide is aimed at fitters, joiners, and ambitious DIY enthusiasts. It explains in detail how the mechanism works, which tools protect the material, and how to avoid typical mistakes during disassembly.

The Mechanism: How a Cam Lock Furniture Connector Works

Understanding the mechanism is essential for separating components without causing damage. A standard cam lock connector consists of two main components:

The cam casing (often simply referred to as the cam), which usually sits in a 15 mm drilled hole in the panel surface.
The connecting bolt (or dowel), which is anchored in the edge of the opposite component.

The principle works like a key in a lock: the joint can only be released in the exact position. By turning the cam casing clockwise, an internal curved ridge grips under the head of the connecting bolt and pulls the two panels together with high force. To loosen the furniture carcass connectors, this curved ridge must be turned back just far enough so that the head of the bolt can slide back through the side opening of the casing.

While the casing is almost always made of robust die-cast zinc, there are differences among the bolts. Metal connector bolts are the standard for high tensile loads, whereas plastic connector variants tend to be used for lightweight shelves or infill panels.

Tools Required for Dismantling

Disassembly does not require heavy machinery. In fact, the use of cordless screwdrivers should be strictly avoided during dismantling, as the high torque can instantly ruin the cross-head drive of the fittings.

Screwdriver: The correct profile is mandatory. In most cases, this is a Pozidriv cross-head size PZ2 or PZ3. A Phillips (PH) screwdriver will slip and damage the casing. Alternatively, many cam casings feature a continuous slot for a large flat-head screwdriver (blade width 6 mm - 8 mm).
Rubber mallet: A lightweight soft mallet helps loosen tight wooden dowels through gentle tapping once the cam connectors have been released.
Protective block: A piece of scrap wood or cardboard to prevent pressure marks on the decorative finish when tapping.
Blanket or cardboard: To serve as a soft underlay for the dismantled components.

Step-by-Step Guide: Dismantling Carcass Connectors

The following carcass connector guide leads you through a systematic disassembly. Plan for approximately one to two minutes per joint.

Step 1: Assessment and Accessibility

Empty the furniture completely. Remove loose shelves resting on shelf supports, as well as drawers, to reduce the weight of the carcass. Locate all cam casings on the inside of the cabinet panels. On a standard cabinet base, there are usually two to three connectors per side.

Step 2: Unlocking the Cam Casing

Insert the PZ2 screwdriver exactly perpendicular into the cam casing. Now turn the casing anti-clockwise. Important: do not keep turning endlessly. Exactly half a turn (about 180°) is sufficient. The casing is fully open when the small embossed arrow on the surface points exactly towards the edge of the panel—meaning towards the concealed connecting bolt. In this position, the internal curved ridge releases the bolt head.

Step 3: Separating the Components

Once all cam casings on a component (for example, the cabinet top) have been turned to the open position, the element can be lifted off. Pull the component away completely straight and parallel to the connecting bolts. Do not tilt the panel. In addition to the cam connectors, traditional wooden dowels (usually 8 mm in diameter) are almost always fitted to provide shear stability. Tilting will inevitably cause these wooden dowels to snap or tear out of the chipboard. If the panel is tight, light taps from below using a rubber mallet will help.

Step 4: Unscrewing the Connecting Bolts (Optional)

If the furniture parts are to be stacked flat for transport, the protruding connecting bolts must be removed, as they will otherwise leave deep scratches in the adjacent decorative finish. Apply the screwdriver and unscrew the bolts anti-clockwise. If these are bolts with a metric M6 thread sitting in a threaded insert, they can be wound out easily. Bolts with direct wood threads for 5 mm drill holes require slightly more effort.

Step 5: Securing the Cam Casings

The round cam casings generally remain in their 15 mm holes in the panel. Because they can sit loosely when opened, they easily fall out during transport. If you want to be safe, push them out from the edge (through the bolt hole) using a slim pin and collect them in a bag.

Common Mistakes and How to Avoid Them

Even though the system seems simple, mistakes frequently happen in practice that can permanently damage the furniture.

Incorrect tools: Using an undersized screwdriver or a PH profile destroys the cross-head profile of the die-cast zinc. The casing can then neither be opened nor closed.
Over-rotating the casing: A cam casing is not a standard screw. Anyone attempting to turn the casing by 360° or more will snap the internal stops. The casing is then unusable and will no longer grip during reassembly.
Forced pulling: If two panels refuse to separate, almost always one cam casing is still closed or not turned precisely to the 180° position (arrow pointing towards the edge). Check all connectors again before applying force.

Excursus: Using Disassembly for Upgrades (Cable Management)

Furniture such as desks or TV units is often dismantled not for moving house, but to adapt or modify it. When the desktop is removed anyway, this presents the perfect opportunity to technically upgrade the unit—for example, with neat cable tidies, which are far easier to install before reassembling.

For a classic office workstation, a desk cable grommet is the neatest solution. The standard hole size for this is often 60 mm, meaning a precisely fitted desk cable grommet 60mm sits flush with the surface.

Depending on the style of the furniture, you can match the material. For modern, industrial-looking desks, a metal cable grommet or a black cable grommet blends seamlessly into the overall look. Those who prefer softer shapes can opt for the classic round cable grommet, whereas a rectangular cable grommet offers more space for wide power strips or multiple monitor leads. Installation is ideally carried out on the dismantled desktop: set up the hole saw, drill, clean the edges, and press in the insert. Afterwards, the top is placed back onto the carcass and secured using the cam connectors.

FAQ – Frequently Asked Questions About Dismantling

How do I know that the cam connector is fully open? On the flat top of the round cam casing, there is a small marking, usually in the form of an arrow or a dot. This arrow must point exactly towards the edge of the panel where the connecting bolt is inserted. The connection is released only in this position.

What should I do if the cam casing is jammed and will not turn? Jamming is often caused by tension in the carcass. Press the two furniture panels firmly together by hand at the joint. This pushes the bolt head minimally deeper into the casing, relieving the tension on the curved track so that the casing can be turned more easily.

Can damaged carcass connectors be replaced? Yes, this can be done without any problems. The components are highly standardised. The essential factors are the diameter of the casing (usually 15 mm), the panel thickness (typically 16 mm or 19 mm), and the thread of the connecting bolt. Measure the old component with a calliper and replace it with an identical size.

Why is the connecting bolt unscrewing itself during disassembly? If the connecting bolt was screwed directly into the timber (without an insert) and the thread in the wood has worn out, the bolt loses its grip. When attempting to loosen the cam casing, the loose bolt sometimes turns with it. In this case, carefully pull the panels apart and, during reassembly, glue a wooden dowel or matches into the hole to give the thread fresh grip.