Assembly Fastener Name Spec Thumbnail Required Note Screw M2 4mm 8 Side Wall: 2 x 4 Screw M2 5mm 36 Servo Arm: 2 x 18 Screw M2 6mm 24 Joint: 4 x 6 Screw M2 10mm 12 Thigh Top: 2 x 6 Screw M2 28mm 36 Servo: 2 x 18 Screw M1.6 16mm 6 Servo: 1 x 6 Screw M1.2 10mm 12 Foot: 2 x 6 Nuts M2 36 Servo: 2 x 18 Nuts M1.6 12 Thigh Bottom: 2 x 6 Pin (304) M4 6mm 18 Servo: 1 x 18