Technic Brick 1 x 16 with Holes (3703)

Maximum Structural Integrity

The Technic, Brick 1 x 16 with Holes (3703) is a heavyweight champion in the world of construction. Spanning a massive 16 studs in length, this beam is designed to provide rigid support for large-scale models. It is frequently used as the primary chassis rail for trucks, the boom arm for cranes, or the structural backbone of large spaceships. If you need to span a long distance without sagging, this is the part for the job.

The Best of Both Worlds

What makes this element so versatile is its hybrid nature. It features standard studs on top for stacking with classic LEGO® Bricks, while the side is lined with 15 holes compatible with pins and axles. This allows you to seamlessly integrate complex mechanical functions into a standard static build. It is a core component of our Technic Bricks collection.

Hardware Requirements

To fully utilize the side-mounting capabilities of this beam, you will need the right connectors. The holes are designed to accept standard friction pins or axles, allowing you to mount wheels, gears, or perpendicular beams. Be sure to stock up on the necessary hardware from our Pins & Connectors section to secure your frame tightly.

Discover more in our LEGO® Technic Pieces Collection.

LEGO® parts are intended for builders aged 4 and up. They may pose a choking hazard for children under 3 years old.