Hexagonal Metal Bolt 20mm M3 Female-Female ideal for mounting all kinds of printed circuit boards, sensors, mechanical parts.

Hexagonal Metal Bolt 15mm M3 Female-Female ideal for mounting all kinds of printed circuit boards, sensors, mechanical parts.

Hexagonal Metal Bolt 8mm M3 Female-Female ideal for mounting all kinds of printed circuit boards, sensors, mechanical parts.

Hexagonal Metal Bolt 25mm M3 Male-Female ideal for mounting all kinds of printed circuit boards, sensors, mechanical parts.

Hexagonal Metal Bolt 15mm M3 Male-Female ideal for mounting all kinds of printed circuit boards, sensors, mechanical parts.

Hexagonal Metal Bolt 8mm M3 Male-Female ideal for mounting all kinds of printed circuit boards, sensors, mechanical parts.

Hexagonal Metal Bolt 5mm M3 Male-Female ideal for mounting all kinds of printed circuit boards, sensors, mechanical parts.

Hexagonal Metal Bolt 30mm M3 Female-Female ideal for mounting all kinds of printed circuit boards, sensors, mechanical parts.

Hexagonal Metal Bolt 30mm M3 Male-Female ideal for mounting all kinds of printed circuit boards, sensors, mechanical parts.

Hexagonal Metal Bolt 35mm M3 Male-Female ideal for mounting all kinds of printed circuit boards, sensors, mechanical parts.

Yellow Rubber Wheels with a diameter of 3.7cm.

The 2 Mini Engine Kit (CW+CCW) with Propellers and 4 Axles.

The Motor Driver de Stepper DRV8825 is a Module Indicated for Control of Stepper Motors of 3D Printers and CNC Equipment, With Current Regulation by Trimpot. The Module Accepts Power between 8.2V and 45V and can supply up to 1.5A per Phase, Supporting Micro Resolution up to 1/32 Steps. It has current and temperature overload protection.

H-bridge Stepper Motor Dual DC Motor Driver L9110S

Micro Metal Gearmotor 0.9A - 50:1

Photoelectric sensor tracking module for five-channel infrared detection tracking.

Tamiya’s steel-ball caster is a good way to give a “third wheel” to a small robot powered by a differential drive. The kit comes with enough parts to make two casters, either 25 mm or 35 mm in height.

Mini Electric Motor Model for Learning