key bolt

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cotter pin

cotter pin: above, below, installation
A metal pin used for fastening; the split ends which project beyond the pin hole are bent back from the axis of the pin.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
The key bolted joints of the compressor were identified based on the analyses of contact statuses on the interfaces between bolted flanges.
A second incident which shows the age we live in was the theft of key bolts from the railway line in Stockton.
Nuts missing from key bolts caused a track stretcher bar to fracture and derail the train.
Nuts missing from key bolts caused a section of the track to fracture and derail the train.
Officials have confirmed that nuts were missing from key bolts on the points, putting extra pressure on a stretcher bar which fractured, derailing the fourth carriage and sending it hurtling on to platforms at the station platform.