Continue to order
Traceable quality
Grade 12.9 High-Strength Carbon Steel External Hexagon Flange Bolts GB 5787 Black-Oxidized Screws with Washers M6/M8/M10/M12
GB 5787
Carbon steel
12.9
M6
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
| Standard | GB 5787 |
|---|---|
| Material | Carbon steel |
| Property class | 12.9 |
| Thread | M6 |
| Size range | M6 |
| Material | Carbon steel |
| Grade | 10.9 |
| 螺纹类型 | straight |
| 头部类型 | External hexagon |
| Surface treatment | Dacromet-coated |
| 包含的零件 | large washers |
| 每个螺栓的螺母 | None |
| Place of origin | Other |
| 销售单位 | 单个商品 |
Description
Grade 12.9 High-Strength Carbon Steel External Hexagon Flange Bolts GB 5787 Black-Oxidized Screws with Washers M6/M8/M10/M12
Standard: GB 5787
Material: Carbon steel
Grade: 10.9
螺纹类型: straight
头部类型: External hexagon
包含的零件: large washers
每个螺栓的螺母: None
Place of origin: Other
Buying guides
2026-11-07
Stainless fastener grades: 304 vs 316
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
Load, preload and cost: when to specify 8.8, 10.9 or 12.9 bolts.
Read article →