Aluminium alloy bolt and nuts 1) 16MM X 50MM (5/8" X 2") BSW HEXAGON HEAD (BOLTS AND NUTS) ENAW-5019 - 1800 PCS 2) 12.5MM X 50MM (1/2" X 2") BSW HEXAGON HEAD (BOLTS AND NUTS) ENAW-5019 - 2700 PCS 3) 16MM X 50MM (5/8" X 2") COUNTERSUNK HEAD (BOLTS AND NUTS) ENAW-5019 - 300 PCS 4) 16MM X 64MM (5/8" X 2.5") BSW HEXAGON HEAD (BOLTS AND NUTS) ENAW-5019 - 100 PCS 5) 12.5MM X 64MM (1/2" X 2.5") BSW HEXAGON HEAD (BOLTS AND NUTS) ENAW-5019 - 200 PCS