ISO 4017 Hex Head Bolts

When durability, standardization, and full-thread engagement are critical, ISO 4017 Hex Head Bolts deliver unmatched performance. Designed in accordance with the international ISO 4017 standard, these fully threaded bolts are widely used in engineering, machinery, automotive, and structural applications where strong, consistent fastening is essential.

What Are ISO 4017 Hex Head Bolts?

ISO 4017 Hex Head Bolts are fully threaded bolts with a hexagonal head, manufactured to ISO metric standards. Unlike partially threaded bolts, ISO 4017 bolts feature threading along their entire length, allowing for maximum clamping flexibility and stronger engagement across materials of varying thicknesses.

These bolts are designed to be tightened with wrenches or socket tools, and their hexagonal heads provide superior torque transmission. ISO 4017 Hex Head Bolts are typically produced in property classes ranging from 8.8 to 12.9, depending on the strength requirements of the application.

Key Features of ISO 4017 Hex Head Bolts

• ? Fully Threaded Design: Allows complete engagement with nuts or tapped holes, increasing holding power.

• ? Hexagonal Head: Offers efficient torque transfer for secure fastening and easy disassembly.

• ? ISO 4017 Compliance: Assures global standardization, interchangeability, and consistent dimensions.

• ? Available in High-Strength Grades: Commonly found in property classes 8.8, 10.9, and 12.9 for demanding environments.

• ? Versatile Applications: Suitable for mechanical assemblies, steel structures, automotive systems, and heavy equipment.

Why C

esting Equipment【测试设备，试验设备】

1. Jinan Star Fastener Company attaches great importance to product quality and is equipped with complete quality inspection equipment, such as tensile testing machines, torque testers, metallographic microscopes, optical projectors, salt spray test chambers, coating thickness gauges, etc., which are used to test the tensile strength and elongation of fastener products and evaluate the mechanical properties of products. These equipment ensure that every link from raw materials to finished products can be strictly controlled in quality.

2. Jinan Star Fastener Company values product quality and has some quality inspection equipment like tensile testing machines, torque testers, metallographic microscopes, optical projectors, salt spray test chambers, and coating thickness gauges. They're used to test the tensile strength and elongation of fastener products and assess the mechanical properties. These equipments makes sure every stage from raw materials to finished products is strictly quality-controlled.

（5）Production equipment【生产设备】

1. In order to meet the needs of different customers, the company has introduced a series of advanced production equipment, such as multi-station cold heading machines, thread rolling equipment, heat treatment equipment, shot blasting machines, sand blasting machines, electroplating lines and other surface treatment equipment, and fully automatic packaging equipment. These equipment not only improve production efficiency, but also ensure the consistency and stability of product quality.

hoose ISO 4017 Hex Head Bolts?

Opting for ISO 4017 Hex Head Bolts means choosing performance, reliability, and global compatibility. Whether you’re designing machinery or constructing steel frames, these bolts ensure robust and precise fastening that meets international quality standards.

Key Benefits:

• ✅ Improved Load Distribution

• ✅ Stronger Thread Engagement

• ✅ Standardized Metric Dimensions

• ✅ Ease of Installation & Removal

• ✅ Wide Material & Finish Availability

Applications of ISO 4017 Hex Head Bolts

Thanks to their full-thread configuration and high tensile strength, ISO 4017 Hex Head Bolts are ideal for applications including:

• Steel Construction: Used in structural frameworks, steel beams, and platforms.

• Heavy Machinery: Provides strong joints in industrial machines and manufacturing equipment.

• Automotive Engineering: Ensures tight connections in engines, gearboxes, and suspension systems.

• Renewable Energy Installations: Fastens critical components in wind turbines and solar frames.

• Railway and Marine Applications: Offers corrosion-resistant fastening in extreme environments.

Material and Surface Finish Options

ISO 4017 Hex Head Bolts are available in a range of materials and finishes to suit various operating environments:

Common Materials:

• Carbon Steel (Grades 8.8, 10.9, 12.9) – Ideal for high-load applications.

• Stainless Steel (A2-70, A4-80) – Corrosion-resistant for outdoor and marine environments.

• Brass / Copper Alloys – For electrical conductivity and decorative uses.

• Titanium / Inconel – For aerospace and chemical-resistant applications.

Finish Options:

• Zinc Plated – Offers basic corrosion protection.

• Hot-Dip Galvanized – Thick coating for outdoor or coastal environments.

• Black Oxide – Aesthetic finish with mild corrosion resistance.

• Dacromet / Geomet Coating – Superior protection without hydrogen embrittlement.

Sizing and Availability

ISO 4017 Hex Head Bolts are manufactured in a wide range of metric sizes, from M5 to M64, with lengths from 10 mm to 500 mm, depending on the application. Standard thread pitches are coarse, although fine threads may be available on request.

These bolts are readily available from industrial suppliers and fastener distributors, often in bulk quantities or custom packaging for OEM and construction clients.

How to Select ISO 4017 Hex Head Bolts

Choosing the right ISO 4017 Hex Head Bolts involves careful consideration of:

• ? Bolt Diameter and Length – Based on material thickness and clamping force needed.

• ? Thread Pitch – Coarse thread for general use; fine thread for precision or vibration resistance.

• ? Property Class – Higher class = stronger bolt; e.g., 12.9 for max strength.

• ?️ Material & Finish – Match environmental exposure to corrosion resistance level.

• ? Compliance Certification – Always request ISO 4017 conformity and mechanical test reports for critical applications.

Where to Buy ISO 4017 Hex Head Bolts

To ensure consistency and performance, purchase ISO 4017 Hex Head Bolts from ISO-certified fastener suppliers or distributors. Look for vendors offering traceability, material test certificates (MTC), and global shipping capabilities. Bulk pricing and customized logistics are often available for manufacturers, construction contractors, and plant maintenance teams.

Final Thoughts

ISO 4017 Hex Head Bolts represent the gold standard in full-thread fastening for industrial, mechanical, and structural applications. With their ISO-compliant dimensions, high-strength design, and versatile material options, they are essential in any precision-engineered assembly.

Whether you’re securing heavy-duty steel components or fine-tuning an automotive assembly, ISO 4017 Hex Head Bolts provide the reliability, strength, and global standardization your project demands.

Product drawing

Testing Equipment

Jinan Star Fastener Company attaches great importance to product quality and is equipped with complete quality inspection equipment, such as tensile testing machines, torque testers, metallographic microscopes, optical projectors, salt spray test chambers, coating thickness gauges, etc., which are used to test the tensile strength and elongation of fastener products and evaluate the mechanical properties of products. These equipment ensure that every link from raw materials to finished products can be strictly controlled in quality.

Production equipment

In order to meet the needs of different customers, the company has introduced a series of advanced production equipment, such as multi-station cold heading machines, thread rolling equipment, heat treatment equipment, shot blasting machines, sand blasting machines, electroplating lines and other surface treatment equipment, and fully automatic packaging equipment. These equipment not only improve production efficiency, but also ensure the consistency and stability of product quality.