●D=4mm L=10mm H=20mm B=12mm Thread Diameter M4 ●Working load 44.1 lbs (20 kg) ●For hanging molds, equipment, and general loading ●The bolt head is a ring that can be used through chains, wires, ropes, etc ●Made of stainless steel, it is rust and weather resistant, durable and long lasting. Perfect for outdoor and coastal use!