Clevis Pin is a type of pin made out of steel per "as casting" or "as forging" process.

When referring to a clevis pin, the grip is the distance from the below the pin head to the edge of the hole.

A "clevis and pin" are a type of shackle, the clevis is the U shaped part, when you have both the clevis and pin together it would form a shackle. There are many types of shackle assemblies and many of them use a clevis. If you had a lifting strap with a loop on the end you would put the clevis on the loop, secure the pin, and now the shackle would be in place. I hope this makes sense.

Clevis pins are similar to bolts and are used for farm equipment, sailboat rigging and more. You can learn more about Clevis pins online at the Wikipedia.

Clevis pins find use in sailboat rigging, farming equipment, and in the aircraft and automotive industry. The clevis pin is available in both threaded and unthreaded for different uses.