Countersunk Hex Socket Cap Bolt
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Countersunk Hex Socket Cap Bolt
Ang hexagon bolts ay hexagon head bolts (partial thread) – grade C at hexagon head bolts (full thread) – grade C, na kilala rin bilang hexagon head bolts (rough) hair hexagon head bolts, black iron screws.Ang mga karaniwang ginagamit na pamantayan ay makikita sa: Din931, Din933 GB5782, GB5783, ISO4014, ISO4017, atbp.
