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Traceable quality
8.8-grade Blackened Carbon Steel Coarse Thread Hex Socket Screws Cylindrical Heads Long Shankcomplete Range Sizes M4 M5 M6 M8
Carbon steel
8.8
M4
From
US$0.01
/ piece
Tier prices are for reference. Final price depends on specification, quantity and destination.
Retail orders: from 10 pcs per item
Wholesale MOQ: 100 piece
Tier pricing
| Quantity | Unit price |
|---|---|
| 100-999 piece | US$0.04 |
| 1000-9999 piece | US$0.03 |
| 10000-99999 piece | US$0.02 |
| ≥ 100000 piece | US$0.01 |
Specifications
| Material | Carbon steel |
|---|---|
| Property class | 8.8 |
| Thread | M4 |
| Size range | M4 |
| Material | Carbon steel |
| Grade | 12.9 |
| 螺纹类型 | full thread,half thread |
| 头部类型 | external hexagon flange |
| Surface treatment | black-oxidized |
| 包含的零件 | washers |
| 每个螺栓的螺母 | None |
| Place of origin | Other |
| 销售单位 | 单个商品 |
Description
8.8-grade Blackened Carbon Steel Coarse Thread Hex Socket Screws Cylindrical Heads Long Shankcomplete Range Sizes M4 M5 M6 M8
Material: Carbon steel
Grade: 12.9
螺纹类型: full thread,half thread
头部类型: external hexagon flange
包含的零件: washers
每个螺栓的螺母: None
Place of origin: Other
Buying guides
2026-11-07
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Corrosion resistance, strength and cost, plus selection advice for outdoor and marine environments.
Read article → 2026-11-07How to choose bolt property class: 8.8, 10.9 and 12.9
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