12mm Hex Wheel Adapter for 4mm Shaft (2-Pack)

These light-weight aluminium shaft adapters convert a typical motor output shaft into a 12 mm hex shaft that is compatible with many common hobby RC wheels, such as the Dagu Wild Thumper Wheels. The side of each adapter that mounts to the wheel contains a hole tapped for M4 screws, and the other side of the adapter mounts to a motor shaft with two M3 set screws. This set includes a pair of adapters, two 8 mm M4 screws, four M3 set screws, and one 1.5 mm Allen wrench for use with the set screws.

This version of the 12 mm hex adapter is 17 mm in length and designed to work with 4 mm diameter output shafts, including round and “D” shafts. It works well with the 20D mm metal gearmotors and 25D mm metal gearmotors.

The set contains:

• 2x 17mm aluminium adapters
• 2x M4 screws
• 4x M3 screws
• a 1.5mm Allen key