cotter

The big bolts have castle nuts and cotter pins, the smaller bolts don’t appear to have retention devices.

If it's a matter of ensuring nothing comes loose you'll have things like threadlocker or a cotter (split) pin.

The 4 restraining nuts and bolts on the door have a cotter pin like mechanism to prevent them from loosening.

Looks like 4 large bolts with castle nuts and cotter pins hold the plug in place.

Often these fasteners use mechanical locking features such as cotter pins, safety wire, or safety cable.

The bolts they can't find are the ones with the castellated nuts and cotter pin.

It's pinned in place with large pin that has a bolt, a castle nut and cotter pin which lock the pin.

These bolts don't have a cotter pin and they look like they are essentially part of the plug door assembly itself.

It's the cotter-pin of our reality, it's the centre that holds, it's the validation of an if-then statement, it's an automated test.

For mission-critical bolts and nuts, absolutely safety wire and cotter pins should be used.

The castle nut design requires the use of a cotter or other locking pin.

And if installed correctly with a castellated nut and cotter pin, seems highly unlikely the bolt could fall out, let alone four bolts.

“More people die younger,” says Lynne Cotter, a senior health-policy researcher at KFF.

Are you looking at the center nut in the photo that's cotter pinned in place, or the two over on the right side that appear to be "loosely threaded on at best, washer rattling along the shaft"?

Nor does "cottar/cotter [cotarius/cotarii]" nor "bordar [bordarius/bordarii]" nor even "villein [villanus/villani]." There are a many levels of commoners in Domesday, almost all of whom suffered greatly under the Norman yoke.

You can maybe cut a cone wrench from a flattened spoon, and you can "press" out chavetas (cotters) with a hammer and chunk of steel instead of a cotter press, and you can true your rims on the bike if you have to, but how are you going to unscrew your freewheel without the right shape of freewheel extractor?

I know I'm not the only person pushed away from EE due to Neil Cotter.