HEXAGON HEAD BOLTS UNI 5738 DIN 960 STEEL 10.9 18X1.5X60 2000 PCS. HEXAGON HEAD BOLTS UNI 5738 DIN 960 STEEL 10.9 16X1.5X60 2000 PCS. THE NON THREADED PART OF THE SCREWS SHOULD BE NOT MORE THAN 18 MM COMPLETE WITH SELF LOCKING NUT AND WASHER 19X34