e/Bowtie cotter pin

Information
has gloss	eng: A bowtie cotter pin is a formed wire fastener that resembles an R-clip, except it positively locks when installed. This keeps them from accidentally falling off or vibrating loose. It was patented by Pivot Point, Inc. on March 23, 1999.
lexicalization	eng: Bow-tie cotter pin
lexicalization	eng: Bowtie cotter pin
instance of	(noun) restraint that attaches to something or holds something in place fastening, holdfast, fastener, fixing