Originally Posted by
CONSO
For those who wonder what the VS stands for - the answer is VOI-SHAN a long time supplier of aerospace standard fasteners.
The HL1013- 6 means simply a 6AL-4V TITANIUM FASTENER 6/32 DIA ( 3/16 )
Thousands of those in 3/16 to 3/8 diameter have been used on most every model and manufacturer of airplanes or missiles for decades. They are batch inspected and certified, and carry NO serial or batch number.
I mention this only to tamp down the ' can we trace that fastener to a particular part or airplane or location ?"
The answer is NO (absent ID of surrounding part(s) )-
(s).
Answer is "maybe"
Each metal batch is close but not identical. Analysis of trace elements can be compared to fasteners coming from same batch - assuming a sister plane used them and one can be removed for comparison