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