2x m3x35mm phillips machine screws 2x m2x25mm (or m3x25 and drill out the holes) 2 x m3 nuts 1 limit switch 1 m5x10mm phillips machine screw 1 t-slot nut 1 Spring (0.75"L x 0.187" OD x 0.029" Wire) - same as used on hercustruder- basically a m3 compression spring