- 12 pcs. – Hexagon head screw M27 X 220 mm UNI 5737 8.8 - 12 pcs.– Hexagon nut M27 UNI 5588 cl.8 or 10 - 12 pcs. – Blind nuts M27 cl.8 or 10 - 24 pz – Flat washers for M27 - 12 pcs. – Spring washers M27 VERY URGENT INQUIRY