This kit has all the screws you need to build your PAROL6 robot arm! Screws included: -M4x10mm 20 pcs DIN 912 / ISO 4762 -M3x8mm 12 pcs 2 mm head height -M3x8mm 50 pcs DIN 912 / ISO 4762 -M3x14mm 32 pcs DIN 912 / ISO 4762 -M3 nut 3 pcs DIN 912 / ISO 4762 -M3x25mm 7 pcs DIN 912 / ISO 4762 -M2x10mm 10 pcs DIN 912 / ISO 4762 -M3x16mm 10 p