This is a 100 pieces total lot of -50 Metric Hex Head Bolts size M6 =6 mm X 16 mm long- threads 1.0 pitch and 8.8 hardness grade . With 50 Nuts to match --Both have washers installed --bolts have 2 a flat and a split lock washer All silver zinc coated for weather resistance These all came from a Gas well rig building company that moved out of Dallas. They only used high quality hardware ,on those rigs.
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