Lamello Clamex S-20 Connectors

The Clamex S-20 is a two-part Lamello System connector designed for use with any biscuit joiner. This innovative knock-down connector lets you build, assemble, and disassemble projects with ease — perfect for flat-pack and modular furniture that needs to be moved or reconfigured. The Clamex S-20 is ideal for professional woodworkers who want a strong, versatile, and time-saving joining system.

The S-20 is the same size as the original #20 biscuit, so it fits in any standard 4mm biscuit groove. Because it’s detachable, furniture and cabinetry can be knocked down for transport without compromising joint integrity. It can even be used in material edges as thin as 8mm, making it ideal for built-in cupboards, open shelving, and HPL countertops.

Unlike conventional joinery, the Clamex S-20 requires no glue. Each half of the connector is anchored with two specially manufactured Clamex S-20 screws, then locked together using an Allen key through a discreet 6mm access hole. This leaves the connection nearly invisible! Despite its minimal footprint, the S-20 delivers a clamping force up to 136 lbs., creating a solid, professional-grade joint every time.

A drill jig is included to help you create access holes at angles from 30° to 180° in materials as thin as 14mm. That makes it easy to produce precise miter joints for wine racks, bookshelves, and other angled assemblies, as well as butt joints in panels as thin as 16mm.

Clamex S-20 is also available in a starter set.