Hex Nut (ASTM A563-C Heavy Hex Quenched and Tempered 1/4"-4")
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Product Highlights
- ASTM A563 Compliance: Heavy hex nuts meet ASTM A563-C standard for quenched and tempered carbon steel.
- Wide Size Range: Available in sizes from 1/4 inch to 4 inches for various applications.
- Multiple Finish Options: Offers Y.Z.P., Black, B.Z.P., Plain, Dacromet, and Geomet finishes.
- High Proof Load: Delivers proof load of 144 Ksi and hardness of 143-352 HBN.
- Factory Direct Supply: Competitive pricing with direct supply from our manufacturing facility.
- Fast Delivery: Goods delivered within 30 days for most orders.
- Custom Manufacturing: All fasteners designed and manufactured according to buyer specifications.
- Quality Assurance: Full supervision of production links with durability testing included.
Product Attributes
- Customization
- Available
- Material
- Carbon Steel
- Type
- Hexagon Head
- Model NO.
- ASTM A563-C 1/4\"-4\"
- Connection
- Common Bolt
- Head Style
- Hexagonal
- Standard
- ASTM
- Grade
- C
- Grades
- C
- Application
- Machinery
- Size
- 1/4"-4"
- Style
- Quenched and Tempered
- Transport Package
- Bulk/Boxes in Cartons, Bulk in Polybags/-Buckets
- Specification
- 1/4"-4"
- Trademark
- QBH
- Origin
- Jiaxing, Zhejiang
- HS Code
- 73181600
- Production Capacity
- 500tons/M
- 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 Hex Nut (ASTM A563-C Heavy Hex Quenched and Tempered 1/4"-4")
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Hex Nut (ASTM A563-C Heavy Hex Quenched and Tempered 1/4"-4") -
Hex Nut (ASTM A563-C Heavy Hex Quenched and Tempered 1/4"-4") -
Hex Nut (ASTM A563-C Heavy Hex Quenched and Tempered 1/4"-4") -
Hex Nut (ASTM A563-C Heavy Hex Quenched and Tempered 1/4"-4")
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Product Description
| Product name | HEAVY HEX NUTS |
| Standard | ASTM A563 |
| Size | 1/4"-4" |
| FINISH | Y.Z.P., BLACK., B.Z.P., PLAIN, dacromet, geomet. |
| Class | C |
| Material | Carbon Steel |
| Packing | bulk/boxes in cartons, bulk in poly bags/-buckets, etc |
| Pallet | solid wood pallet, plywood pallet, ton box/bag, etc. |
| Mechanical Properties | |||||
| Grade | Style | Size in | Proof Load, Ksi | Hardness, HBN | |
| Black | Galvanized | ||||
| C | Heavy Hex | 1/4 - 4 | 144 | 144 | 143-352 |
| For UNC, 8UN, 6UN, and Coarse Pitch Threads | |||||
FAQ
Q:Are you a factory or trading company?
A: We are factories, mainly producing fasteners, such as nuts, bolts, screw and rod, and 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 convenient 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 receive the inquiry.
B. High quality: Durability testing and critical technical are designed to enhance the lifetime of the fasteners.
C. Cost effective: Competitive prices with factory directly supply.
D. The shortest delivery:The goods will be deliveried within 30 days.
E. Professional manufacturer: All of our fasteners are designed and manufactured according to buyers' specification and performance.
If you have any questions or you are not sure what exactly you need, please feel free to contact us! We will provide you with professional services!
For more information, please visit: http://qbfastener.en.made-in-china.com&http://www.qbfastener.en.made-in-China.com
Awaiting for your early inquiries!
Best wishes®ards
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, and 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 convenient transportation, which is next to Shanghai Port, Ningbo Port and Zhapu Port.
- How does your 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 receive the inquiry. B. High quality: Durability testing and critical technical are designed to enhance the lifetime of the fasteners. C. Cost effective: Competitive prices with factory directly supply. D. The shortest delivery:The goods wil
- What is the delivery time?
- The goods will be delivered within 30 days.
- Can you customize the fasteners?
- All of our fasteners are designed and manufactured according to buyers' specification and performance.
- What are the available finishes?
- Available finishes include Y.Z.P., Black, B.Z.P., Plain, Dacromet, and Geomet.
- What is the proof load and hardness?
- The proof load is 144 Ksi and hardness ranges from 143 to 352 HBN.
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