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Zhejiang B7 Bolt
QS Fastener: Zhejiang B7 Bolt
Name: Zhejiang B7 Bolt
Material: AISI 304 Stainless Steel
Length: 140mm
Type: Tap End Stud
Standard: API 20E
Size: 1 Inch
Thread: 8 UNC
Finish: Yellow Zinc
Application: For High Temperature and High Pressure Service
Material: AISI 304 Stainless Steel
Length: 140mm
Type: Tap End Stud
Standard: API 20E
Size: 1 Inch
Thread: 8 UNC
Finish: Yellow Zinc
Application: For High Temperature and High Pressure Service
Quantity
When industrial applications demand uncompromised fastening performance under extreme conditions, the Zhejiang B7 Bolt stands as a proven solution. Manufactured from AISI 304 stainless steel, this tap end stud offers a unique combination of corrosion resistance and mechanical strength, distinguishing it from conventional alloy-steel B7 alternatives. With a precise length of 140mm, a 1‑inch nominal size, and 8 UNC threads, it is designed for structurally demanding bolted connections where reliability is non‑negotiable.
Compliance and Technical Specifications
Fully compliant with API 20E – the industry benchmark for bolting used in high‑pressure/high‑temperature (HPHT) oilfield equipment – this Zhejiang B7 Bolt undergoes stringent quality controls to ensure consistent material integrity and dimensional accuracy. The tap‑end configuration simplifies installation in blind holes or confined spaces, while the 8 UNC thread profile provides robust load distribution and resistance to vibrational loosening, even under cyclic thermal and mechanical stresses.
Fully compliant with API 20E – the industry benchmark for bolting used in high‑pressure/high‑temperature (HPHT) oilfield equipment – this Zhejiang B7 Bolt undergoes stringent quality controls to ensure consistent material integrity and dimensional accuracy. The tap‑end configuration simplifies installation in blind holes or confined spaces, while the 8 UNC thread profile provides robust load distribution and resistance to vibrational loosening, even under cyclic thermal and mechanical stresses.
Protective Finish and Durability
The yellow zinc plating applied to the bolt serves a dual purpose: it delivers a durable protective barrier against atmospheric and chemical corrosion, and it offers a visually identifiable finish for quick inspection during maintenance. This coating, combined with the inherent oxidation resistance of 304 stainless steel, extends service life in aggressive environments such as offshore platforms, refinery piping, and geothermal plants.
The yellow zinc plating applied to the bolt serves a dual purpose: it delivers a durable protective barrier against atmospheric and chemical corrosion, and it offers a visually identifiable finish for quick inspection during maintenance. This coating, combined with the inherent oxidation resistance of 304 stainless steel, extends service life in aggressive environments such as offshore platforms, refinery piping, and geothermal plants.
Application Scenarios
These fasteners are specifically engineered for HPHT service in:
- Oil and gas wellhead equipment (flanges, valves, and connectors)
- Petrochemical reactors and heat exchangers
- Power generation turbines and superheater supports
- Subsea and marine structural assemblies where chloride attack is a concern
These fasteners are specifically engineered for HPHT service in:
- Oil and gas wellhead equipment (flanges, valves, and connectors)
- Petrochemical reactors and heat exchangers
- Power generation turbines and superheater supports
- Subsea and marine structural assemblies where chloride attack is a concern
Their high tensile strength and impact toughness ensure structural integrity, reducing unplanned downtime and enhancing operational safety.
The Zhejiang Fastening Industry Advantage
Zhejiang Province has long been recognized as a global hub for high‑quality fastener manufacturing, benefiting from decades of metallurgical expertise, advanced cold‑heading and heat‑treatment technologies, and a complete supply chain from raw material to surface finishing. Local producers in regions such as Ningbo, Jiaxing, and Wenzhou have built a reputation for precision, traceability, and on‑time delivery – making the Zhejiang B7 Bolt not just a product, but a hallmark of regional engineering excellence. This ecosystem ensures that every bolt meets international standards while offering competitive lead times and responsive technical support.
Zhejiang Province has long been recognized as a global hub for high‑quality fastener manufacturing, benefiting from decades of metallurgical expertise, advanced cold‑heading and heat‑treatment technologies, and a complete supply chain from raw material to surface finishing. Local producers in regions such as Ningbo, Jiaxing, and Wenzhou have built a reputation for precision, traceability, and on‑time delivery – making the Zhejiang B7 Bolt not just a product, but a hallmark of regional engineering excellence. This ecosystem ensures that every bolt meets international standards while offering competitive lead times and responsive technical support.
Summary
In summary, the Zhejiang B7 Bolt – with its AISI 304 construction, API 20E certification, yellow zinc finish, and tap‑end design – delivers exceptional performance in high‑stress, high‑temperature, and corrosive environments. Backed by Zhejiang’s robust fastener industrial base, it offers the perfect balance of strength, durability, and traceability for critical infrastructure projects worldwide. For engineers seeking a reliable, code‑compliant fastening solution, this bolt represents a sound, field‑proven choice.
In summary, the Zhejiang B7 Bolt – with its AISI 304 construction, API 20E certification, yellow zinc finish, and tap‑end design – delivers exceptional performance in high‑stress, high‑temperature, and corrosive environments. Backed by Zhejiang’s robust fastener industrial base, it offers the perfect balance of strength, durability, and traceability for critical infrastructure projects worldwide. For engineers seeking a reliable, code‑compliant fastening solution, this bolt represents a sound, field‑proven choice.
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