{HEAD ~ The aperture} has a predefined shape and size, and is configured to receive {TAIL ~ the resilient screw} 
is configured to receive
{ HEAD ~ The aperture } has a predefined shape and size , and is configured to receive { TAIL ~ the resilient screw }
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL