Countersunk Hex Socket Cap Bolt
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Countersunk Hex Socket Cap Bolt 8.8 10.9 12.9 Grade
Hexagon bolts are hexagon head bolts (partial thread) – grade C and hexagon head bolts (full thread) – grade C, also known as hexagon head bolts (rough) hair hexagon head bolts, black iron screws. Commonly used standards can be found in: Din931, Din933 GB5782,GB5783, ISO4014, ISO4017, etc.
