Material: AISI 904L 100 pcs. hexagon head bolts M16X50 with flat washer and nut 150 pcs. hexagon head bolts M16X30 with flat washer 100 pcs. hexagon head bolts M12X30 with flat washer and nut 100 pcs. hexagon head bolts M10X30 with flat washer and nut 100 pcs. hexagon head bolts 12X40 with flat wahser and nut 100 pcs. only flat washer and nut M20 100 pcs. nut M16 in AISI 910 S