China Hex Head Bolts A490 for Industry, Find details about China Hex Head Bolt, Structure Hex Bolt from Hex Head Bolts A490 for Industry
STANDARD | Heavy Hex Structural Bolts A490M |
GRADE | 10.9 |
SIZE | M12-M30 |
SURFACE TREAMENT | Black, zinc plated, zinc (Yellow) plated, H.D.G. etc. |
MATERIAL | Carbon steel, alloy steel ,stainless steel,etc |