Continue to order
Traceable quality
High-Strength Anti-Theft Tamper-Proof Hexagon Bolts Black Oxide Finish Carbon Steel UNF Thread Class 10.9 12.9
Model: M6-M40*20mm-300mm
DIN931
Stainless steel 304
Black oxide
10.9
M8
From
US$0.1
/ piece
Tier prices are for reference. Final price depends on specification, quantity and destination.
Retail orders: from 10 pcs per item
Wholesale MOQ: 1000 piece
Tier pricing
| Quantity | Unit price |
|---|---|
| ≥ 1000 piece | US$0.1 |
Specifications
| Model | M6-M40*20mm-300mm |
|---|---|
| Standard | DIN931 |
| Material | Stainless steel 304 |
| Surface | Black oxide |
| Property class | 10.9 |
| Thread | M8 |
| Size range | M8 |
| Length range | 20mm |
| Material | Carbon steel |
| Grade | 304 |
| 螺纹类型 | 公制 |
| 头部类型 | Hex头 |
| Surface treatment | Plain |
| 每个螺栓的螺母 | 2 |
| Place of origin | Hebei, China |
| Brand | JUNCHUANG |
| Model | M6-M40*20mm-300mm |
| 尺寸 | 根据客户的要求 |
| Length | 根据客户的要求 |
| 样品 | 免费提供 |
| 付款期限 | 可议价 |
| MOQ | 根据客户的要求 |
| 交货时间 | 7-30天 |
| 销售单位 | 单个商品 |
| 单个包装尺寸 | 33X35X45 厘米 |
| 单个产品毛重 | 8.0 公斤 |
Description
High-Strength Anti-Theft Tamper-Proof Hexagon Bolts Black Oxide Finish Carbon Steel UNF Thread Class 10.9 12.9
Standard: DIN931
Material: Stainless steel 304
Surface: Black oxide
Grade: 304
螺纹类型: 公制
头部类型: Hex头
每个螺栓的螺母: 2
Place of origin: Hebei, China
Brand: JUNCHUANG
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 →