A bolt which has the thread diameter several millimetres less than the shank diameter. In this way a shoulder is formed where the bolt shank has been machined down to receive the smaller diameter thread. Found on https://www.encyclo.co.uk/local/20707
A bolt which has the thread diameter several millimetres less than the shank diameter. In this way a shoulder is formed where the bolt shank has been machined down to receive the smaller diameter thread.