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Ningbo Zhenhai Xinchun Fastener Co., Ltd.
Outer Hexagonal Bolt – High‑Strength Fasteners for Heavy Industry
Release time:
2026-05-07 18:07
Source:
Outer Hexagonal Bolt – High‑Strength Fasteners for Heavy Industry
Produced by Ningbo Xinchun Fastener | Grade 12.9 Alloy Steel | GB/DIN/ISO Standard
The outer hexagonal bolt is one of the most widely used fasteners in machinery, construction, wind power, valves and equipment assembly. It features a hexagonal head for easy tightening with wrenches, stable force transmission, and strong compatibility. For heavy‑duty working conditions, high‑strength outer hexagonal bolts become critical components that ensure safety, stability and long service life.
What is Outer Hexagonal Bolt?
The outer hexagonal bolt, also called external hex bolt, is a threaded fastener with a hexagonal head. It can be quickly installed and removed with standard wrenches, socket tools or electric tools. It is widely used in mechanical assembly, equipment fixing, pipeline connection and structural engineering.
Compared with socket head cap screws, outer hexagonal bolts provide larger contact area, higher anti‑loosening performance and stronger torque resistance, making them ideal for high‑load and high‑vibration environments.
Material & Standards
Ningbo Xinchun Fastener produces outer hexagonal bolts using high-quality alloy steel to meet international standards:
- Materials: SCM435, SCM440, B7, 42CrMoA
- Strength Grade: Grade 12.9 high strength
- Standards: GB5782, GB5783, DIN, ISO, custom standards
- Types: Full thread, half thread, fine thread, custom length
- Surface: Plain, black oxide, Teflon, zinc plating, custom coating
Key Advantages of Our Outer Hexagonal Bolt
- High tensile strength and fatigue resistance for heavy industry
- Stable torque and excellent anti‑loosening performance
- Good toughness in high and low temperature environments
- Corrosion resistance for long‑term outdoor use
- Precision thread, easy assembly and high compatibility
- Stable quality with full inspection equipment
Main Applications
Our outer hexagonal bolts are widely used in many industries:
- Mechanical equipment & manufacturing
- Wind power generation equipment
- Hydraulic motors & pump systems
- Valves, pipelines and pressure vessels
- Automotive, shipbuilding and engineering machinery
- Construction, steel structure and assembly lines
Why Choose Xinchun Fastener?
Ningbo Zhenhai Xinchun Fastener was founded in 2007, focusing on high‑strength fasteners for more than 16 years. We have advanced automatic production lines, complete testing equipment and ERP management system to ensure stable quality and efficient delivery.
- 16+ years of experience in fastener manufacturing
- 27+ product categories, 47+ countries served
- Grade 12.9, B7, 42CrMoA alloy steel materials
- Full inspection: hardness, tensile, thread, dimension
- Accept OEM, ODM and custom drawings
- Stable supply for long‑term partners
Get a Quote for Outer Hexagonal Bolt
Contact us for specifications, price, samples and custom solutions.
Mobile: +86-13958203543 | Email: leo@b7-xcgs.com
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