- Model No.: ASTM A490
- Type: Hexagon Head Bolt
- Head Style: Hexagonal
- Grade: 8.8
- Finish: Hot-Dipped Galvanized
- Transport Package: 25kg per Carton, 36 Cartons per Pallet
- Origin: Ningbo, China
- Material: Carbon Steel
- Connection: Standard Bolt
- Standards: DIN, ANSI, GB, JIS, BSW
- Application: Machinery, Construction
- Trademark: HZ
- Specification: M12 and above
- HS Code: 73181500

ITEM | A490 |
GRADE | 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9 |
FINISH | Black, Plain, Zinc Plated (Clear/Blue/Yellow/Black), HDG, DACROMET |
SIZE | From M12 |
MATERIAL | 35#, 45#, 40Cr, 35CrMo, 42CrMo, B7, Carbon Steel, etc. |
SAMPLE | Free Sample Available |
THREAD | UNC, UNF |
PRODUCTION PROCESS | Cold Forging, Hot Forging, etc. |
NOTICE | Please inform us of Size, Quantity, Grade, Finish for an accurate quote. |

Company Information
Ningbo Zhenhai Huazhi High Intensity Fastener Manufacture Co., Ltd. specializes in high-strength fasteners. With over 10 production lines, we are committed to providing quality products at competitive prices. Our company holds ISO 9001 certification and produces fasteners according to standards such as DIN, ASTM, ANSI, JIS, BS, AS, GB, and ISO.
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FAQ:
Q1: Are you a factory or a trading company?
A: We are a manufacturer of fasteners.
Q2: How many years have you been engaged in foreign trade?
A: Our company has been involved in international trade since 2009.
Q3: What is your quality assurance process?
A: We use premium materials and advanced testing equipment to ensure every product meets the highest quality standards.
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