Shanghai Summery Industrial Machine Co. , Ltd.
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High Precision Square Head Bolts Mild Steel Material For Machinery Industry
Product Description
| Product Name | Square head bolt | ||
| Material | Carbon steel Q235 Q345 | ||
| Size | M8-M30 | ||
| Surface treatmen | natural color. Galvanized | ||
| Grade | 4.8/6.8/8.8/10.9 | ||
| Usage | Widely used in electronics, electrical engineering, electrical products, machinery and equipment, chemical equipment, ships, vehicles, bridges, steel structures and other industries. | ||
