For better securing of the pin in its closed position, the pin and the bore exhibit, on {HEAD ~ their side} facing {TAIL ~ the object} to be tied, catch edges engaging behind each other in the releasing direction of the pin 
facing
For better securing of the pin in its closed position , the pin and the bore exhibit , on { HEAD ~ their side } facing { TAIL ~ the object } to be tied , catch edges engaging behind each other in the releasing direction of the pin
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH