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Traceable quality
Black Oxide Carbon Steel High Strength Plain Washers Matched for Grade 8/10/12.9 Bolts Extra Large Size Flat Gaskets
Stainless steel 316
Black oxide
12.9
M3-M12
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 | Stainless steel 316 |
|---|---|
| Surface | Black oxide |
| Property class | 12.9 |
| Thread | M3-M12 |
| Size range | M3-M12 |
| 测量系统 | Metric |
| Grade | 304 |
| 螺纹旋向 | 右旋 |
| Surface treatment | Stainless Steel |
| Application | 工业通用 |
| 车身形式 | Square |
| Place of origin | China |
| 销售单位 | 单个商品 |
Description
Black Oxide Carbon Steel High Strength Plain Washers Matched for Grade 8/10/12.9 Bolts Extra Large Size Flat Gaskets
Material: Stainless steel 316
Surface: Black oxide
测量系统: Metric
Grade: 304
螺纹旋向: 右旋
Application: 工业通用
车身形式: Square
Place of origin: China
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 →