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8.8 Grade High-Strength Carbon Steel Carriage Bolts Round Head Square Neck Blackened Finish GB12 Model 20mm Sizes M8 M10 M12 M16
GB12
Carbon steel
Zinc plated
8.8
M8
From
US$0.05
/ piece
Tier prices are for reference. Final price depends on specification, quantity and destination.
Retail orders: from 10 pcs per item
Wholesale MOQ: 10 piece
Tier pricing
| Quantity | Unit price |
|---|---|
| 10-4999 piece | US$0.12 |
| 5000-7999 piece | US$0.1 |
| 8000-9999 piece | US$0.08 |
| ≥ 10000 piece | US$0.05 |
Specifications
| Standard | GB12 |
|---|---|
| Material | Carbon steel |
| Surface | Zinc plated |
| Property class | 8.8 |
| Thread | M8 |
| Size range | M8 |
| Length range | 20mm |
| 测量系统 | Metric |
| 地脚螺栓类型 | 空心墙锚栓 |
| Application | 工业通用 |
| Place of origin | Hebei, China |
| Brand | JUN CHUANG |
| Material | 锌 |
| 颜色 | 锌蓝 |
| 销售单位 | 单个商品 |
| 单个包装尺寸 | 57X53X59 厘米 |
| 单个产品毛重 | 55.0 公斤 |
Description
8.8 Grade High-Strength Carbon Steel Carriage Bolts Round Head Square Neck Blackened Finish GB12 Model 20mm Sizes M8 M10 M12 M16
Standard: GB12
Material: Carbon steel
Surface: Zinc plated
测量系统: Metric
地脚螺栓类型: 空心墙锚栓
Application: 工业通用
Place of origin: Hebei, China
Brand: JUN CHUANG
颜色: 锌蓝
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 →