High Strength Round Head U Bolt
1. Product Parameters
Standard: |
ASME B 18.2.1, IFI 149, DIN 931, DIN 933, DIN 558, DIN 960, DIN 961, ISO 4014 and more |
Size: |
Standard and non-standard sizes available; custom designs are supported |
Material: |
Cold rolled steel, alloy steel, Stainless Steel, brass, and other materials |
Grade: |
SAE J429 Gr. 2, 5, 8; ASTM A307 Gr. A, Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9 and more |
Thread: |
UNC, UNF |
Finish: |
Plain, zinc-plated (clear, blue, yellow, black), black oxide, nickel, chrome, HDG, and others |
Packing: |
Bulk in cartons (max 25kg) + wooden pallets or as per customer requirements |
Application: |
Used in structural steel, metal buildings, oil & gas, towers, wind energy, machinery, automotive, home decoration, and more |
Testing Equipment: |
Desktop spectrometer, cutting machine, pre-milling machine, polishing machine, hardness tester, metallographic microscope, electrolytic thickness gauge, tensile testing machine, salt spray chamber, magnetic particle inspection, calipers, go/no-go gauges, and more |
Supply Capacity: |
2000 tons per month |
Minimum Order: |
No restrictions |
Trade Terms: |
FOB, CIF, CFR, CNF, EXW, DDU, DDP |
Payment Methods: |
T/T, L/C, D/A, D/P, Western Union, MoneyGram, etc. |
Market Areas: |
North and South America, Europe, East and Southeast Asia, Australia, Africa, and more |
Our Advantages: |
One-stop service; high quality; competitive pricing; timely delivery; technical support; supply material and test reports |
Notice: |
Please provide size, quantity, material, grade, surface finish. For special or non-standard products, please send drawings, photos, or samples to us |
2. Company Information
Shanghai Jinrui Norm Parts Supplies Co., Ltd. is a professional manufacturer of fasteners and standard parts. The company owns two factories: Shanghai Xingrui Bolt Factory and Shanghai Xingrui Wire Steel Factory. We have a wide range of cold heading machines, nut machines, and hot heading machines.
We hold ISO 9001 and TS 16949 certifications, and we can produce fasteners according to GB, DIN, ANSI, JIS, ISO, and customer specifications at competitive prices.

3. Production Process
From raw materials to the final product, we maintain strict quality control throughout all stages, including wire drawing, annealing, pickling, heading, rolling, heat treatment, surface treatment, and packaging.

4. Why Choose Shanghai Jinrui?
(1) Value Creation for Customers
We always deliver high-quality and well-designed products to meet customer needs. As a leader in the industry, we ensure excellent service and reliable products.
(2) Better Quality with Lower Price
We offer the best price for the same level of quality, helping you save costs without compromising on performance.
(3) Continuous Innovation
Every year, we develop new products to adapt to changing market demands and stay ahead of the competition.
(4) Manufacturing and Export Expertise
With 14 years of experience in manufacturing and exporting, our products are available globally. We use multiple shipping methods: trucks, trains, and sea containers.
5. FAQ
Q1: Are you a factory or trading company?
A: We are a specialized fastener supplier, offering the best price and quality.
Q2: How many years have you been in foreign trade?
A: Over 14 years of exporting experience, delivering high-quality fasteners worldwide.
Q3: Do you have sufficient stock?
A: We maintain large inventories and offer 24/7 service.
Q4: How do you ensure quality during production?
A: Each process is inspected by our quality control team to guarantee product quality.

Q5: How do you ensure safe long-distance transportation?
A: Our professional packing team ensures that all packages are securely handled.

Q6: Can you provide samples?
A: Yes, samples can be provided based on your specific requirements.
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Shandong Great Steel Co.,Ltd , https://www.great-steel.com