DIN912/ISO4762 Hex Socket Cap Screw Allen Bolt

**Partial Thread Hexagon Head Bolt** **1. Product Parameters** **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 are equipped with multiple cold-heading machines, nut machines, and hot-heading machines to meet various production needs. We hold ISO9001 and TS 16949 certifications and can produce fasteners according to GB, DIN, ANSI, JIS, ISO standards, as well as customer-specific requirements. Our products are known for their quality, reliability, and cost-effectiveness. **3. Production Process** From raw materials to final delivery, every step is strictly controlled. The process includes wire drawing, roughing, annealing, pickling, heading, rolling, heat treatment, surface treatment, and packaging. Each stage is carefully monitored to ensure product consistency and quality. **4. Why Choose Shanghai Jinrui?** - **Create Value for Customers:** We focus on delivering high-quality and well-designed products that meet customer expectations. As a leading supplier in the industry, we always strive to exceed client expectations. - **Better Quality at Lower Prices:** We offer competitive pricing without compromising on quality, helping our clients save costs effectively. - **Continuous Innovation:** Every year, we develop new products to stay ahead of market trends and meet evolving customer demands. - **Expertise in Manufacturing and Export:** With over 14 years of experience in manufacturing and exporting, we have built a strong global presence. Our logistics include truck, rail, and sea container shipments, ensuring reliable delivery worldwide. **5. FAQ** **Q1: Are you a factory or trading company?** A: We are a specialized fastener supplier offering the best prices and services. **Q2: How long have you been in foreign trade?** A: We have over 14 years of export experience, supplying high-quality fasteners to countries around the world. **Q3: Do you have enough stock?** A: Yes, we maintain sufficient inventory and have a strong financial foundation. We also offer 24/7 service. **Q4: How do you ensure quality throughout the process?** A: Each process is inspected by our dedicated quality control team to ensure consistent product quality. **Q5: How do you ensure safe long-distance transportation?** A: Our professional packing teams ensure all packages are securely handled during transit. **Q6: Can you provide samples?** A: Yes, we can provide samples based on your specific requirements. Let us know how we can assist you with your next order!

Carbon Steel Pipe

Seamless carbon steel pipes are made of steel ingots or solid billets through perforation to make capillaries, which are then hot-rolled, cold-rolled or cold-drawn. The raw material of carbon Steel Pipe is a round tube blank, which is cut by a cutting machine into a billet with a length of about 1 meter, and sent to a furnace for heating through a conveyor belt. The billets are fed into the furnace and heated at about 1200 degrees Celsius. The fuel is hydrogen or acetylene. Furnace temperature control is a critical issue. After the round tube blank is released from the furnace, it is pierced through a pressure punching machine. Generally, the more common punching machine is the conical roller punching machine. This kind of punching machine has high production efficiency, good product quality, large amount of perforation and diameter expansion, and can wear a variety of steel grades. After perforation, the round tube blank is successively cross-rolled, continuously rolled or extruded by three rolls.
1. Seamless steel pipe for structure (GBT8162-2008). Mainly used for general structure and mechanical structure. Its representative material (brand): carbon steel, 20, 45 steel; alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, etc.
2. Seamless steel pipes for conveying fluids (GBT8163-2008). It is mainly used for conveying Fluid Steel Pipe in engineering and large-scale equipment. The representative material (grade) is 20, Q345, etc.
3. Seamless steel pipes for low and medium pressure boilers (GB3087-2008) are used to manufacture various structures of low and medium pressure boiler superheated steam pipes, boiling water pipes and superheated steam pipes, large smoke pipes, small smoke pipes and arch bricks for locomotive boilers Hot-rolled and cold-drawn (rolled) seamless steel pipes of high-quality carbon structural steel for pipes. The representative material is 10, 20 steel.

Carbon Steel Tube, Mild Steel Pipe, Hot Rolled Steel Pipe, Weld Steel Pipe

Shandong Guanzhou Iron and Steel Group Co., Ltd. , https://www.guanzhousteel.com