August 08, 2025

Cap Screw Gr8.8 Hex Bolt (Black)

**Partial Thread Hexagon Head Bolt** **1. Product Parameters**
Standard: ASME B 18.2.1, IFI149, DIN931, DIN933, DIN558, DIN960, DIN961, ISO4014, and more.
Size: Standard and non-standard sizes available. Customization is supported.
Material: Cold rolled steel, carbon 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, etc.
Thread: UNC, UNF
Finish: Plain, Zinc Plated (Clear/Blue/Yellow/Black), Black Oxide, Nickel, Chrome, HDG, etc.
Packing: Bulk in cartons (max 25kg) + wooden pallets or as per customer request.
Application: Structural steel, metal buildings, oil & gas, towers, wind energy, machinery, automotive, home decoration, and more.
Testing Equipment: Desktop spectrometer, cutting machine, automatic pre-milling machine, polishing machine, Vickers hardness gauge, metallography microscope, electrolytic thickness gauge, tensile testing machine, salt spray device, magnetic particle flaw detector, caliper, Go/No-go gauge, and more.
Supply Ability: 2000 tons per month.
Minimum Order: No minimum order limit.
Trade Terms: FOB, CIF, CFR, CNF, EXW, DDU, DDP.
Payment: T/T, L/C, D/A, D/P, Western Union, MoneyGram, etc.
Market: South/North America, Europe, East/Southeast Asia, Australia, Africa, and more.
Our Advantages: One-stop shopping, high quality, competitive pricing, timely delivery, technical support, material and test reports provided.
Notice: Please provide size, quantity, material or 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. specializes in producing fastening components and other standard parts. The company owns two factories: Shanghai Xingrui Bolt Factory and Shanghai Xingrui Wire Steel Factory. We are equipped with a wide range of cold-heading machines, nut machines, and hot-heading machines. We hold ISO9001 and TS 16949 certifications, and we can manufacture fasteners according to GB, DIN, ANSI, JIS, ISO, and customer specifications at competitive prices. **3. Production Process** From raw materials to final product delivery, our process is strictly controlled. Each step — from wire drawing, roughing, annealing, pickling, heading, rolling, heat treatment, surface treatment, to packaging — is carefully managed to ensure the highest quality standards. **4. Why Choose Shanghai Jinrui?** - **Create Value for Customers:** We focus on delivering high-quality and well-designed products that meet customer needs. - **Better Quality at Lower Prices:** We offer competitive pricing without compromising on quality. - **Continuous Innovation:** Every year, we develop new products to meet evolving market demands. - **Manufacturing and Export Experts:** With 14 years of experience, we deliver products globally via truck, rail, and sea containers. **5. Frequently Asked Questions (FAQ)** **Q1:** Are you a factory or trading company? **A:** We are a specialized fastener supplier, offering the best price and quality. **Q2:** How long have you been in foreign trade? **A:** We have over 14 years of exporting experience and supply high-quality fasteners worldwide. **Q3:** Do you have enough stock? **A:** Yes, we maintain sufficient inventory and offer 24/7 service. **Q4:** How do you ensure quality throughout the process? **A:** Our quality inspection department checks every stage to guarantee product quality. **Q5:** How do you ensure safe long-distance transportation? **A:** Professional packing teams ensure all packages are securely handled. **Q6:** Can you provide samples? **A:** Yes, we can provide samples based on your requirements. **Total characters: 1150+**

Inclined Construction Elevator

The main steel structure of the construction hoist has been optimized design, which not only considers the mechanical properties of the steel structure, but also meets the functions of using, manufacturing, transportation and installation.

The main body of the cage is welded with high-quality channel steel (material: Q355B or Q235B) and square tubes, the structure is reasonable and appearance is beautiful; the bottom and top of the cage are made of non-slip patterned steel plates, and the top of the cage is equipped with railings; The semi-inlaid electric control cabinet structure and the standardized cable protection groove effectively improve the using space and electricity safety of the cage.


The standard section is welded by φ76×4.5 high-quality round tube (material: Q355B), angle steel, etc. through multiple sets of special robot welding process equipment, with a special rack for transmission on the side; The high precision of multi-process and tooling ensures the high interchangeability of the standard section, and the size deviation of each part is far better than the national standard requirements, which directly improves the smoothness of the equipment operation; After welding, the standard section undergoes an overall shot blasting treatment and a special painting process to eliminate structural welding stress, improve the wear resistance of the material surface, and paint the inner wall of the steel pipe to enhance its own protection ability and increase the service life.

The attachment device is mainly connected by a front connecting rod, an adjustable middle connecting rod, an adjustable long connecting rod and other components through fasteners and bolts; the horizontal and height directions have a large adjustment range and flexibility.

The fence is mainly composed of angle steel and woven mesh, etc., with neat and beautiful structure.




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Fangyuan Group Co.,Ltd. , https://www.fygcorp.com