The invention relates to the field of systems for locking {HEAD ~ a torqued fastener} in {TAIL ~ place} and providing indication thereof and, particularly, to one suitable for use in an oxygen rich environment 
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The invention relates to the field of systems for locking { HEAD ~ a torqued fastener } in { TAIL ~ place } and providing indication thereof and , particularly , to one suitable for use in an oxygen rich environment
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH