Ss304 Connector Bolt Cup Head Hexagonal Socket Flange Bolt Carriage Bolt

August 02, 2025

**Product Information**
  • Material: Stainless Steel
  • Connection Type: Common Bolt
  • Standards: DIN, ANSI, GB, JIS, BSW, GOST
  • Application: Machinery, Industrial Equipment
  • Available Materials: Carbon Steel, High Strength Steel, Stainless Steel
  • International Standards: DIN, ANSI, GB, JIS
  • Usage: Machinery, Chemical Industry, Construction, Environmental Systems
  • Brand: HNF
  • Size Range: M4 to M100
  • HS Code: 731815
  • Type: Mushroom Head Bolt
  • Head Style: Round Head
  • Grade: 304, 316
  • Finish: Hot Galvanized
  • Head Type: Hexagon, Round
  • Class/Grade: 304, 316
  • Surface Treatment: Hot Galvanizing, Black, Color Zinc, Blue-White Zinc
  • Packaging: 20-25kg per Carton, 900kg per Pallet
  • Origin: China
--- **DIN 603 Grade 8.8 Round Head Carriage Bolt** A bolt is a type of threaded fastener with an external male thread and is often used in conjunction with nuts. It is sometimes confused with screws due to their similar appearance, but bolts are typically designed for use with a nut and are usually tightened with a wrench or socket. A hex cap screw is a specific type of bolt with a hexagonal head that is intended to be driven by a wrench. These screws are commonly used in industrial applications where high strength and precision are required. The ASME B18.2.1 standard specifies tighter tolerances for hex cap screws compared to standard hex bolts, making them more precise and suitable for critical applications. ---
Product Name DIN 603 Grade 8.8 Round Head Carriage Bolt
Standard: DIN, ASTM/ANSI, JIS, EN, ISO, AS, GB
Material Stainless Steel: SS201, SS303, SS304, SS316, SS316L, SS904L, F593
Steel Grades: DIN: 4.6, 4.8, 5.6, 5.8, 8.8, 10.9, 12.9; SAE: 2, 5, 8; ASTM: 307A, 307B, A325, A394, A490, A449
Finishing Zinc (Yellow, White, Blue, Black), Hot Dip Galvanized (HDG), Black Oxide, Geomet, Dacromet, Anodization, Nickel Plated, Zinc-Nickel Plated
Production Process M2-M24: Cold Forging; M24-M100: Hot Forging; Machining and CNC for Custom Parts
Custom Lead Time Busy Season: 15–30 Days; Slack Season: 10–15 Days
Stock Products Steel: 4.8, 8.8, 10.9 Grades – DIN 6923, GB 5783, GB 5782; Stainless Steel: All DIN Standard Bolts
Free Samples Available for Standard Fasteners
For more details, visit: www.hainafastener.com

SS304 Connector Bolt Cup Head Hexagonal Socket Flange Bolt Carriage Bolt


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As a professional manufacturer, we specialize in producing high-quality fasteners tailored to your specifications. Our products are designed and manufactured with strict quality control to ensure durability and performance in demanding environments. We guarantee the quality of our fasteners through rigorous testing and advanced technical design. We also offer competitive pricing thanks to direct factory supply, making us a cost-effective choice for your needs. With over 20 years of experience in the fastener industry, we provide comprehensive solutions for a wide range of applications. Whether you need standard parts or custom designs, we have the expertise to meet your requirements. If you're unsure about which product you need, don’t hesitate to contact us. Our team of experts is always ready to assist you and find the best solution for your project.

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