Our factory is a professional manufacturer and supplier of high-quality hex bolts (hexagon head bolts) that fully comply with international standards including DIN931, DIN933, ISO4014, ISO4017, ANSI, AS, and JIS. We provide both full thread hex bolts and half thread hex bolts to meet different assembly requirements in various industries.
Made of high-grade carbon steel (grades 4.8, 8.8, 10.9, 12.9) and stainless steel (A2 / A2-70, A4 / A4-80), our hex bolts feature stable performance, high tensile strength, excellent hardness, and good toughness. They are widely used in harsh working environments such as construction, steel structure, machinery, automotive, shipbuilding, electric power, wind turbine, and petrochemical engineering.
We offer a full range of surface treatments including electro-galvanized, hot dip galvanized (HDG), black oxide, plain, dacromet, and custom coatings to enhance corrosion resistance and service life. Sizes range from M3 to M36, and lengths from 8mm to 300mm, with large stock available for fast delivery. Custom sizes, materials, and packaging are also accepted for OEM & ODM orders.
All hex bolts are produced under strict quality control and inspected before shipment to ensure dimensional accuracy, thread smoothness, and reliable fastening performance.
Key Features & Advantages
High precision thread for easy installation and firm locking
High strength and anti-loosening performance under vibration
Good corrosion resistance for outdoor and heavy-duty use
Complete standards and sizes for global market
Stable supply chain and short delivery time
ISO9001 certified factory with reliable quality
Main Specifications
Product Name: Hex Bolt / Hexagon Head Bolt
Standards: DIN931, DIN933, ISO4014, ISO4017, ANSI
Material: Carbon Steel 4.8/8.8/10.9/12.9; Stainless Steel A2/A4
Size: M3, M4, M5, M6, M8, M10, M12, M16, M20, M24, M30, M36
Thread Type: Full Thread, Half Thread
Surface: Zinc Plated, HDG, Black Oxide, Plain, Dacromet
MOQ: 1000pcs / 500kg
HS Code: 73181590
Main Applications
Steel Structure Buildings, Construction Engineering, Machinery Equipment, Automotive Industry, Railway, Wind Power, Electric Power Fittings, Pipeline Installation, Bridge Engineering, Hardware Assembly
Packing & Delivery
Packing: Inner box + outer carton + pallet; or according to customer requirements
Delivery Time: 7–15 days after deposit
Loading Port: Shanghai, Ningbo, Guangzhou, Qingdao
Certifications
ISO9001, SGS, Material Test Report (MTC), Tensile Test Report
Trade Terms
Price Terms: FOB, CFR, CIF, EXW
Payment Terms: T/T, L/C, Western Union, PayPal
Sample Service: Free samples available (freight collect)
