• Black electrophoretic finish • Rotating disk • Drainage holes prevent freezing • Standards CEN, ASTM • Material: Body: Case hardened steel; Shackle: hardened boron alloy steel. • Operation: The shackle is locked by a double ball bearing mechanism. Rotate key 90 degree to unlock.˚ • Available with retained shackle • Protective shutte prevents dust contamination • Sealing around shackle may be ordered separately