20 Series Extrusions are the most versatile building blocks in our Structural Components lineup. Featuring 20 mm profiles like 2020 and 2040, they offer an ideal balance of strength, precision, and weight for everything from small robots and CNC machines to sim-racing rigs, test fixtures, and custom frames.

This specific piece is a 2040 extrusion, meaning it measure 20 x 40 mm and features two 6mm slots, making it effectively two 2020 extrusions stuck together. These are an excellent option for areas where additional strength or more mounting options are required. It is 320mm in length and is finished with a durable black-oxide sandblasted coating for a clean, professional look and added surface protection. Two 5 mm center bores runs the full length, making it ideal for tapping to M6 for end-fastening and internal mounting, while the standard 6 mm T-slots accept widely available nuts, bolts, and brackets for fast, flexible assembly.