SS20
pull pin style shackle
This pull pin style shackle has a breaking strength of 40,000 pounds (18,181 kg) and maximum safe working load of 20,000 pounds (9,090 kg). This style is also available in SS10 or SS40 sizes. The SS10 has a breaking strength of 20,000 pounds (9,090 kg) and a maximum safe working load of 10,000 pounds (4,545 kg) The SS40 has a breaking strength of 80,000 pounds ( 36,363 kg) and a maximum safe working load of 18,181 kg). The shackles are designed not to be releasable under load.