Bolts for energy project 2500 sets of high Strength Bolts with washer Diameter: Φ 1 ½’’ Material: A325 or A354 Grade BD Galvanized Thread length at least 1 ½’’ Total bolt length 100 mm (4’’) 2500 pcs. round bars Size Φ 3’’ Material mat. A576 Grade 1045 (or DIN CK45) With threaded hole suitable for screws as above (item 1). As per attached drawing