Name: Hexagon Fit Bolts
Brand: Jinan ZhongChuan Equipment Co.,Ltd.

Hexagon Fit Bolts

The front thread of hexagon fit bolts is used for connection, and the back end without thread is used for positioning. It can withstand lateral and axial loads. The lateral load-bearing method depends on the shear strength of the bolt itself, and its lateral bearing capacity is higher than that of ordinary bolts.

In Hexagon fit bolt connection, the diameter of the screw part is the same as the basic size between the holes, which is a transition fit. When there is relative sliding between the connected parts, the shear resistance of the bolt itself is used to prevent its movement, so a small pre-tightening force is required.

Hexagon fit bolts are mainly used in metallurgy, transmission, textile, connection, and other fields.

All items are produced in strict accordance with industry standards or customer-specific requirements.

What Are Hexagon Fit Bolts?

JNZC's hexagon fit bolts are high-strength fasteners designed for both connection and precise positioning. Featuring a threaded front end for secure fastening and an unthreaded hexagonal shank at the back, these bolts excel in applications requiring resistance to lateral and axial loads. The hexagonal shank fits snugly into a matching hole, preventing rotation and ensuring stability under stress. Manufactured by Jinan ZhongChuan Equipment Co., Ltd., a leader in special high-strength fasteners since 1994, these bolts reflect our commitment to quality and innovation.

Key Features of JNZC Hexagon Fit Bolts

Dual Functionality: Threaded front for connection, hexagonal unthreaded back for precise positioning.
Enhanced Load Capacity: Withstands lateral and axial loads, with superior shear strength compared to standard bolts.
Transition Fit Design: Screw diameter matches hole size for a secure, low-preload connection.
Durability: Made from high-strength steel with optional corrosion-resistant coatings (e.g., galvanization).
Standard & Custom Solutions: JNZC manufactures hexagon fit bolts that adhere to globally recognized standards, ensuring precision, strength, and durability. In addition to standard production, JNZC offers OEM & ODM customization to meet your specific requirements.

Applications of Hexagon Fit Bolts

JNZC hexagon fit bolts are trusted across industries for their reliability and precision. Key applications include:

Metallurgy: Securing heavy machinery components under intense loads.
Transmission Systems: Ensuring stability in power and gas turbines.
Textile Machinery: Providing alignment in high-speed equipment.
Wind Power: Supporting tower and nacelle assemblies (e.g., for clients like Nordex and Enercon).
Rail & Locomotives: Enhancing joint stability in rail infrastructure.

JNZC – Your Trusted Hexagon Fit Bolt Manufacturer

As a leading manufacturer of hexagon fit bolts in China, JNZC provides high-quality fasteners that meet international standards, along with customized solutions designed to fit your specific project requirements.

1. Standard-Compliant Manufacturing

JNZC produces hexagon fit bolts that adhere to globally recognized standards, ensuring exceptional precision, strength, and durability:

ISO 7412 – International standard for fit bolts
DIN 610 – German standard for hex fit bolts
ANSI/ASME B18.2.1 – American standard for hex bolts
GB/T Standards – Complies with China's national specifications

2. Premium Materials & Strength Grades

Our hexagon fit bolts are available in various materials and strength grades to suit your needs:

Carbon Steel & Alloy Steel – High strength and long-lasting durability
Stainless Steel (SS304, SS316) – Corrosion-resistant, ideal for harsh environments
High-Strength Grades (8.8, 10.9, 12.9) – Perfect for heavy-duty applications

3. Tailored Solutions to Meet Your Requirements

In addition to standard options, JNZC offers OEM & ODM customization:

Size & Dimensions – Bolt diameters from M12 to M100, lengths up to 500mm
Thread Types – Full-thread or partial-thread based on your needs
Surface Coatings – Options include HDG, zinc plating, phosphating, PTFE, and more
Customized Mechanical Properties – Adjust hardness, tensile strength, and corrosion resistance to fit your project.

Why Partner with JNZC for Hexagon Fit Bolts?

With over 30 years of expertise, Jinan ZhongChuan Equipment Co., Ltd. (JNZC) delivers unmatched quality and innovation:

Advanced Manufacturing: Produced using Industry 4.0 automation and intelligent robotics in our 80,000+ sqm facility.
Certified Quality: Compliant with AS 9100D, ISO 9001:2015, and IATF 16949:2016 standards, with ISO/IEC 17025-certified testing.
Global Reach: Exported to Europe, North America, Asia, and beyond, serving industry leaders like GE, Siemens Energy, and Caterpillar.
R&D Excellence: Backed by our 55-engineer R&D Center, driving innovation in fastener technology.

Wide Range of Hexagon Fit Bolt Applications

Our hexagon fit bolts are used across various industries, including:

Construction & Infrastructure – Bridges, steel structures, and heavy-load connections
Wind Energy & Power Plants – High-strength fasteners for extreme conditions
Heavy Machinery & Mining – Secure fasteners for demanding environments
Railway & Automotive – Vibration-resistant fastening solutions

JNZC guarantees precise manufacturing, timely delivery, and professional customization, providing the ideal fastener solutions for your industry.

How Hexagon Fit Bolts Deliver Performance?

In a hexagon fit bolt connection, the diameter of the screw matches the hole's basic size, creating a transition fit. This design allows the bolt to resist relative sliding between connected parts using its inherent shear strength, requiring only minimal pre-tightening force. The hexagonal shank locks into place, ensuring alignment and preventing rotation—ideal for dynamic or high-stress environments.