Technic Brick 1 x 2 with Hole 3700

The LEGO® Technic Brick 1 x 2 with Hole 3700 is a compact way to introduce a Technic connection into a traditional studded build. With two studs on top and a hole through the side, this small structural element works well in vehicles, machinery, frames and custom mechanical models.

Compact Technic Connection Brick

Part 3700 retains the familiar 1 x 2 brick footprint while providing a side connection point for compatible Technic elements. This makes it especially useful when a build needs Technic functionality without taking up much space.

Part 3700 Features

• LEGO® Technic Brick 1 x 2 with Hole
• Part number 3700
• Two studs for standard LEGO® connections
• Side Technic hole for compatible connections
• Useful for compact structural and mechanical assemblies
• Black colour variant shown on this product page

Useful for Repairs, MOCs and Technic Builds

Add part 3700 to vehicle frames, moving mechanisms, equipment, robotics projects or mixed System-and-Technic constructions. Its small footprint also makes it a practical replacement part when rebuilding sets or restoring incomplete models.

Compare this element with other sizes in our LEGO® Technic Bricks collection, or find more compatible components in the LEGO® Technic Parts range.