Bolts, nuts, washers, spring washers, threaded rod and U-bolts.
U-shaped · sized to pipe diameter · galvanized / steel
M6–M24+ · Grover / Split Lock
M6–M24+ · flat washer
M4–M24+ · internal metric thread
M6–M20+ · 4.8 / 8.8 / 10.9 / 12.9