E-clip
fastener that is mounted on an axle in a machined groove; looks like a washer but has an opening smaller than the axle diameter to rest in place
en-GB/iː - ˈklɪp/
en-US/ˈi - ˈklɪp/
fastener that is mounted on an axle in a machined groove; looks like a washer but has an opening smaller than the axle diameter to rest in place