Caterpillar bolts with square nuts Bolt M20X1.5 L.63 with square nut h 21 3000 pcs bolts 4000 pcs nuts Bolt 3/4-16 L 2-13/32 with square nut h 3/4 2000 pcs bolts 3000 pcs nuts Bolt 7/8-14 L2-21/32 with square nut h 7/8 3000 pcs bolts 3000 pcs nuts Bolt 1"x2" fine pitch 2000 pcs (8.8) Bolt with locking nut 20x100 (8.8 -10.9) 2000 pcs