What does a split pin do?
A split pin is a simple fastener generally made of soft, malleable metal used to lock low torque parts in place. The split pin typically consists of a flat, round or half round pin bent double with a pronounced loop at the closed end.
Who invented the split pin?
Ira J. Young
Ira J. Young invented the cotter pin in 1912 in St. Louis, Missouri. He “applied for a patent on a machine for forming split pins,” later referred to as cotter pins.
What can I use instead of a split pin?
If you don’t have a split pin, improvise with a pipe cleaner or something similar – I think a sandwich bag tie would work just as well. Thread it through the hands and then the cardboard, and then twist it around to secure it.
What is the difference between a split pin and a cotter pin?
Difference Between Cotter Pins and Split Pins Cotter pins are made of mild steel and are used for locking nuts at the place. Whereas Split pins are made up of harder grade steel. It is once inserted into the hole to lock the nut.
Why do they call it a cotter pin?
cotter (n.) “wedge-shaped piece or bolt which fits into a hole used in fastening or tightening,” 1640s, of uncertain origin; perhaps a shortened form of cotterel, a dialectal word for “cotter pin or bolt, bracket to hang a pot over a fire” (1560s), itself of uncertain origin. Cotter-pin is attested by 1849.
How do you remove a split pin?
Instead of a removal tool, you can use a nail and a small screwdriver or a small punch. Use a hammer and punch if the removal tool fails to extract a stuck cotter pin. Cut or break both ends of the cotter pin flush with the bolt or shaft and use the hammer and a punch to push the remainder of the pin through the hole.
What kind of pin is a split pin?
A split pin is a simple fastener generally made of soft, malleable metal used to lock low torque parts in place. The split pin typically consists of a flat, round or half round pin bent double with a pronounced loop at the closed end.
What is the difference between a split pin and a cotter key?
Split pin. A split pin, also known in the United States as a cotter pin or cotter key, is a metal fastener with two tines that are bent during installation, similar to a staple or rivet. Typically made of thick wire with a half-circular cross section, split pins come in multiple sizes and types. The British definition…
What does a split pin on a washer do?
A split pin (UK usage) / cotter pin (USA usage) holding a rod in place with a washer. A split pin , also known in the United States as a cotter pin or cotter key , [1] is a metal fastener with two tines that are bent during installation, similar to a staple or rivet .
Why are split pins supposed to be discarded?
When they are removed they are supposed to be discarded and replaced, because of fatigue from bending. Split pins are typically made of soft metal, making them easy to install and remove, but also making it inadvisable to use them to resist strong shear forces. Common materials include mild steel, brass, bronze, stainless steel, and aluminium.