Technic Brick 1 x 2 with Rotation Joint Socket

This LEGO® Technic Brick 1 x 2 with Rotation Joint Socket combines a compact studded brick with an integrated rotation socket, allowing articulated sections to be securely connected while maintaining smooth movement. Part 80431 is ideal for creating compact pivot points in Technic models, mechs, creatures and other mechanical builds where controlled articulation is required.

Technic Brick Features

• Modified 1 x 2 Technic brick
• Integrated rotation joint socket
• Compatible with matching Technic rotation joint ball elements
• Two upper studs for standard brick construction
• Available in the colour variant selected on this product page

Building Uses

The compact size makes this element suitable wherever space is limited but reliable articulation is needed. It works well for adjustable arms, robotic joints, steering mechanisms, articulated vehicle components, folding structures and poseable brick-built figures. The studded design also makes it easy to integrate moving Technic functions into traditional LEGO® brick-built models.

Pair this element with matching LEGO Technic ball joints and sockets, reinforce your builds using LEGO Technic bricks, connect mechanisms with LEGO Technic pins and connectors, or browse our complete range of LEGO Technic pieces.