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Hex Head Bolts (ISO 4017 / JIS B 1180)
Professional Hex Head Bolt Manufacturer
Lingyufab is a professional China-based manufacturer specializing in high-quality industrial hex head bolts, serving global leaders in the home appliance and industrial automation sectors, including Mitsubishi Electric. We manufacture a comprehensive range of standard fasteners strictly according to JIS, DIN, ISO, and ANSI standards, while also supporting custom non-standard requirements for specialized mechanical assemblies. Our production focuses on high-precision hex head bolts from M4 to M12, ensuring exceptional thread accuracy and structural reliability. As a direct factory, we leverage advanced cold heading and thread rolling technologies to ensure every bolt, whether a standard component or customized based on your technical drawings, delivers the performance required for high-end systems. Contact us today for a professional hex head bolt manufacturer.
ISO 4017-2022
Hexagon head screws threaded up the head
| Size | ISO 4017 Wrench (s) | DIN 933 Wrench (s) | Impact & Note |
|---|---|---|---|
| M10 | 16 mm | 17 mm | ⚠️ 1mm Difference DIN head is larger. Standard stock. |
| M12 | 18 mm | 19 mm | ⚠️ 1mm Difference DIN head is larger. Standard stock. |
| M4 - M8 | Same | Same | ✅ Fully Compatible |
ISO 4014-2022
Hexagon head bolts
| Size | ISO 4014Wrench (s) | DIN 931 Wrench (s) | Impact & Note |
|---|---|---|---|
| M10 | 16 mm | 17 mm | ⚠️ 1mm Difference DIN head is larger. Standard stock. |
| M12 | 18 mm | 19 mm | ⚠️ 1mm Difference DIN head is larger. Standard stock. |
| M4 - M8 | Same | Same | ✅ Fully Compatible |
Hex Head Bolts for Your Project
We utilize advanced multi-station cold heading and high-speed thread rolling equipment to produce a wide range of industrial hex head bolts compliant with JIS B 1180 and ISO 4017 standards. Our core manufacturing expertise focuses on Bolts from M4 to M12, available in various strength classes and surface finishes to match your technical drawings and structural requirements. To guarantee superior batch-to-batch consistency, we utilize high-speed optical sorting machines for 100% dimensional verification and in-house salt spray test chambers to verify the corrosion resistance of our Zinc Cr3 plus and specialized protective coatings. If you are looking for a reliable hex head bolt manufacturer for your next project, please contact us today.
Material Selection for Hex Head Bolts
We source and process materials strictly according to your engineering requirements and BOM to ensure optimal mechanical performance for every fastener. Our manufacturing range primarily covers high-quality Carbon Steel and Stainless Steel such as SS304 and SS316, selected for their durability and tensile strength in industrial automation and home appliance equipment. All hex head bolts undergo precise surface treatments, including Zinc Cr3 plus plating, which is verified by our in-house salt spray testing to meet the specific JIS corrosion resistance standards. Every batch is finalized through 100% optical sorting to ensure total compliance with the dimensional standards required for your final assembly and automated production lines.
What are Industrial Hex Head Bolts?
These are versatile threaded fasteners with a hexagonal head designed to be driven by a wrench or socket, providing robust clamping force for a wide range of mechanical assemblies. As a trusted OEM supplier for global leaders like Mitsubishi Electric, we produce a specialized range of hex head bolts from M4 to M12. We ensure every bolt is manufactured strictly according to JIS and international specifications based on your technical drawings, providing the critical structural integrity and stability required for high-performance home appliances and industrial systems.
Features of Our Quality-Verified Hex Bolts:
Our hex head bolts are characterized by 100% thread accuracy and superior batch-to-batch consistency. By utilizing high-speed optical sorting technology, we ensure every piece meets tight dimensional tolerances for the hex head and threaded shank, effectively preventing failures or assembly delays in your automated production tools. Additionally, our bolts provide excellent corrosion resistance verified through rigorous salt spray testing, ensuring long-term reliability in various environmental conditions. By combining expert material selection with precise cold heading, our components offer the vibration resistance and tensile strength needed for demanding industrial applications.
Manufacturing Process for Your Hex Bolts:
We follow a rigorous manufacturing flow designed for world-class reliability and total JIS compliance. The process begins with a detailed review of your technical drawings or JIS standards, followed by high-speed multi-station cold heading to form the hexagonal head and bolt body. We utilize precision thread rolling to create accurate threads and apply controlled heat treatment to reach specific strength classes (such as Grade 8.8 or 10.9). After durable surface treatments like Zinc Cr3 plus plating, every batch undergoes salt spray verification and 100% optical sorting under Japanese quality management systems to guarantee that only perfect fasteners reach your production line.
Why Choose Lingyufab as Your Hex Head Bolt Partner:
We provide a scalable manufacturing solution backed by our deep experience serving world-class appliance and industrial brands. By specializing in JIS standards and maintaining a direct-factory model, we offer the precision and quality baseline required by leading engineering firms at competitive prices. Our commitment to 100% thread accuracy, combined with our advanced optical sorting and environmental testing capabilities, makes us the reliable partner for your global industrial fastener procurement and supply chain needs.
What Are Hex Flange Screws Used For?
Hex flange screws are fasteners with a hexagonal head and an integrated flange beneath the head. The flange acts like a built-in washer, spreading load over a wider bearing surface during assembly. In