Continue to order
Traceable quality
8.8 Grade Half-Threaded Hex Head Bolts Black Oxide Finish High-Strength 35 Steel GB 5782 M5M20
GB 5782 / GB70
Alloy steel
Black oxide
8.8
M5
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 5782 / GB70 |
|---|---|
| Material | Alloy steel |
| Surface | Black oxide |
| Property class | 8.8 |
| Thread | M5 |
| Size range | M5 |
| Material | Alloy steel |
| Grade | 12.9 |
| 螺纹类型 | half thread |
| 头部类型 | hex head |
| Surface treatment | Dacromet |
| 每个螺栓的螺母 | None |
| Place of origin | Other |
| 销售单位 | 单个商品 |
| 单个包装尺寸 | 15X15X15 厘米 |
| 单个产品毛重 | 1.0 公斤 |
Description
8.8 Grade Half-Threaded Hex Head Bolts Black Oxide Finish High-Strength 35 Steel GB 5782 M5M20
Standard: GB 5782 / GB70
Material: Alloy steel
Surface: Black oxide
Grade: 12.9
螺纹类型: half thread
头部类型: hex head
每个螺栓的螺母: None
Place of origin: Other
销售单位: 单个商品
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 →