cotter pin

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cotter pin

cotter pin

n.
A split cotter inserted through a hole or holes and bent at the ends to fasten two or more parts together.

cotter pin

n
1. (Mechanical Engineering) a split pin secured, after passing through holes in the parts to be attached, by spreading the ends
2. (Mechanical Engineering) a tapered pin threaded at the smaller end and secured by a nut after insertion

cot′ter pin`


n.
a cotter having a split end that is spread after being pushed through a hole to prevent it from working loose.
[1890–95]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cotter pin - a cotter consisting of a split pin that is secured (after passing through a hole) by splitting the ends apartcotter pin - a cotter consisting of a split pin that is secured (after passing through a hole) by splitting the ends apart
cottar, cotter - fastener consisting of a wedge or pin inserted through a slot to hold two other pieces together
References in periodicals archive ?
After doing so, the striker bolt was reinstalled, but the corresponding washer, bolt, and cotter key (highlighted in the photos above), which secure the cam assembly to the timer check-valve, were left off in order to reduce the amount of time it would take to remove the striker bolt again if more adjustments were required.
The two piece, cotter key style pin had straightened out enough to be removed from the grenade, but was bent apart just enough to not allow the pin to slide back into place.
A cotter key that should have been safety-wired had come out and had allowed the attaching screw to slowly work its way out.