DIN6921 Flange Bolts (Cl. 4.8/6.8/8.8/10.9 ASME B18.2.3.4M)
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Product Highlights
- Wide Grade Range: Available in grades 4.8, 6.8, 8.8, and 10.9 for diverse strength needs.
- Multiple Finish Options: Plain, Black, Z.P., Y.Z.P., H.D.G., Dacromet, Geomet, and Nickel Plated.
- Custom Length Support: Max body length can be customized up to 800mm/32in.
- Fast Delivery: Goods delivered within 30 days with competitive pricing.
- Strict Quality Control: Durability testing and critical technical design enhance fastener lifetime.
- Professional Manufacturing: Designed and manufactured according to buyers' specific requirements.
Product Attributes
- Customization
- Available
- Material
- Carbon Steel
- Type
- Hexagon Head With Flange
- Model NO.
- M5-M16
- Connection
- Common Bolt
- Head Style
- Hexagon Head with Flange
- Standard
- DIN, ISO
- Grade
- 4.8/6.8/8.8/10.9
- Application
- Machinery, Chemical Industry, Environmental, Building
- Finish
- Plain/Black/Y.Z.P./Z.P./H.D.G./Geomet, etc
- Max Body Length
- 800mm/32in
- Transport Package
- Bulk/Boxes in Cartons, Bulk in Polybags/Buckjets
- Specification
- M5-M16
- Trademark
- QBH
- Origin
- Jiaxing, Zhejiang
- HS Code
- 7318151001
- Production Capacity
- 500tons/Month
- Package Size
- 26.00cm * 26.00cm * 14.00cm
- Package Gross Weight
- 25.000kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of DIN6921 Flange Bolts (Cl. 4.8/6.8/8.8/10.9 ASME B18.2.3.4M)
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DIN6921 Flange Bolts (Cl. 4.8/6.8/8.8/10.9 ASME B18.2.3.4M) -
DIN6921 Flange Bolts (Cl. 4.8/6.8/8.8/10.9 ASME B18.2.3.4M) -
DIN6921 Flange Bolts (Cl. 4.8/6.8/8.8/10.9 ASME B18.2.3.4M) -
DIN6921 Flange Bolts (Cl. 4.8/6.8/8.8/10.9 ASME B18.2.3.4M) -
DIN6921 Flange Bolts (Cl. 4.8/6.8/8.8/10.9 ASME B18.2.3.4M) -
DIN6921 Flange Bolts (Cl. 4.8/6.8/8.8/10.9 ASME B18.2.3.4M) -
DIN6921 Flange Bolts (Cl. 4.8/6.8/8.8/10.9 ASME B18.2.3.4M)
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Product Description
| STYLE | FLANGE BOLTS |
| STANDARD | DIN6921 |
| SIZE | M5-M20 |
| FINISH | PLAIN, BLACK, Z.P., Y.Z.P., H.D.G., dacromet, geomet, nickle plated, mechanical zinc plated, etc. |
| CLASS | CL.4.8/6.8/8.8/10.9 |
| MATERIAL | low carbon steel, medium carbon steel |
| PACKING | bulk/boxes in cartons, bulk in polybags/buckets, etc. |
| PALLET | solid wood pallet, plywood pallet, ton box/bag, etc. |
Max body length: 800mm/32in
Dimensions:
Mechanical Properties: As specified in SAE J429
FAQ
A: We are factories, mainly producing fasteners, such as nuts, bolts, screw and rod, meanwhile, we also manage other hardware products.
Q: Where is your factory located? How can I visit there?
A: Our factory is located in Jiaxing City, Zhejiang Province with a good location and conve- nient transportation, which is next to Shanghai Port, Ningbo Port and Zhapu Port.
Q: How does you factory do regarding quality control?
A: "Quality is priority" we supervise each production link and we always attach great importance to quality controlling from the beginning to the end.
We promise:
A. The fastest response: Informations about the product will be replied the first time as soon as we received the inquiry.
B. High quality: Durability testing and critical technical design to enhance fasteners lifetime.
C. Cost effective: Competitive prices with factory directly supply
E. Professional manufacturer: All of our Fasteners are designed and manufactured according to buyers' specification and performance.
feel free to contact us! We will provide you with professional services!
About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR2531789". Items marked "
" are certified.
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Company Profile
Jiaxing City Qunbang Hardware Co., Ltd. (brand: QBH) is a fastener enterprise integrating production, design, sales, and after-sales service. The company is located in the Hangzhou-Jiaxing-Huzhou Plain, close to Shanghai, Ningbo, and Zhapu ports. Thanks to its superior geographical position and convenient transportation, the company has natural advantages for export business.
The company mainly produces high-strength fasteners, with bolts and nuts as its core products. The main standards include DIN, ANSI/ASME, JIS, UNI, ISO, AS, BS, GB, and others. Our products are widely used in bridges, roads, petroleum pipeline facilities, wind power generation, and steel structure projects. Carbon steel bolts are available in grades 4.8, 5.8, 6.8, 8.8, 10.9, and 12.9; Nuts in grades 4, 6, 8, and 10. Stainless steel fasteners are mainly made of 201, 304, and 316. Since its establishment, QBH has undergone over ten years of development. We are equipped with comprehensive testing equipment and maintain good cooperation with SGS and TUV. Each batch of products is accompanied by a 3.1 or 3.2 certificate, further ensuring quality.
In 2017, we registered the trademark "QBH" in China, the EU, and the United States, and obtained six fastener product patents. We have also been awarded the Zhejiang Province Science and Technology Small and Medium-sized Enterprise certificate and the ISO9001: 2000 certificate. As the company continues to grow and customers demand more diversified products, we have further strengthened our manufacturing capabilities.
In 2025, QBH officially expanded with two new factories:
China Factory (Ningbo):
NINGBO QB FASTENER MANUFACTURING Co., Ltd.
Address: No. 100, Tianshen Road, Jiulonghu, Zhenhai, Ningbo City, Zhejiang Province, China
Vietnam Factory:
KHAI TIN HUY PRODUCTION AND TRADING COMPANY LIMITED
Address: Street No. 1, Thuan Dao Expanded Industrial Park, Long Dinh Ward, Can Duoc District, Long An, Vietnam
With the addition of these new facilities, QBH has significantly increased production capacity, optimized cost structures, and enhanced supply chain flexibility. Starting from 2015, QBH had already begun cooperating with several fastener enterprises to enrich product variety and improve pricing. Now, with our own manufacturing bases in both China (Ningbo) and Vietnam, we can offer even more competitive prices, shorter lead times, and better quality control across a wider range of products.
QBH has always been committed to providing customers with efficient, convenient services and high-quality products. Our mission is to create a pleasant trading experience for our customers, deeply participate in their construction projects, and make progress together. This means we continuously strive to offer better and more cost-effective solutions, helping customers stand out in a competitive market.
QBH promises to always provide you with excellent quality, efficient service, and very competitive prices. We believe our cooperation is not only business-based but also an opportunity to open new markets together on a win-win basis. We thank all our past customers for their great support and help, which have allowed us to grow step by step. At the same time, we look forward to establishing new business relationships with you in the near future.
About Our Factory & Business Background
- Address
- No375, Tongle Road, Nanhu District, Jiaxing City, Zhejiang Provice, Jiaxing, Zhejiang, China
- Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment, OA
- International Commercial Terms(Incoterms)
- FOB, CFR, CIF, DDP, EXW, Others
- Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: within 15 workdays - Nearest Port
- SHANGHAI, NINGBO
Our Production Capability & Technical Expertise
- Main Products
- Fastener, Nuts, Bolts, Thread Rod, Washer, Hex Nuts, Hex Bolts, A194-2h, A325/A325m, A490/A490m
Our Industry Experience & Global Business Record
- Export Year
- 2004-01-10
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
FAQ
- Are you a factory or trading company?
- We are factories, mainly producing fasteners, such as nuts, bolts, screw and rod, meanwhile, we also manage other hardware products.
- Where is your factory located? How can I visit there?
- Our factory is located in Jiaxing City, Zhejiang Province with a good location and conve- nient transportation, which is next to Shanghai Port, Ningbo Port and Zhapu Port.
- How does you factory do regarding quality control?
- 'Quality is priority' we supervise each production link and we always attach great importance to quality controlling from the beginning to the end. We promise: A. The fastest response: Informations about the product will be replied the first time as soon as we received the inquiry. B. High quality: Durability testing and critical technical design to enhance fasteners lifetime. C. Cost effective: Competitive prices with factory directly supply D. The shortest delivery:The goods will be deliveried
- What are the available grades for these bolts?
- The bolts are available in grades 4.8, 6.8, 8.8, and 10.9.
- What materials are used for these flange bolts?
- They are made from low carbon steel and medium carbon steel.
- What is the maximum body length available?
- The max body length is 800mm/32in.
- What are the standard sizes for these bolts?
- The standard sizes range from M5 to M20.
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