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Ningbo Hex Head Bolts
QS Fastener: Ningbo Hex Head Bolts
Name: Ningbo Hex Head Bolts
Length: 70mm
Application: Bolts and Nuts Play a Critical Role in Ensuring the Integrity of High-pressure Systems
Standard: ASME B18.2.1
Size: 7/8 Inch
Material: ASTM A320 Gr.8M/A194 8M
Length: 70mm
Application: Bolts and Nuts Play a Critical Role in Ensuring the Integrity of High-pressure Systems
Standard: ASME B18.2.1
Size: 7/8 Inch
Material: ASTM A320 Gr.8M/A194 8M
Quantity
Ningbo Hex Head Bolts: Precision Fastening Solutions for High-Pressure Systems
Ningbo has established itself as a premier hub for fastener manufacturing in China, with the industry concentrated in industrial zones throughout Zhejiang province, including Zhenhai, Beilun, and Xiangshan districts. Local manufacturers have developed comprehensive production capabilities, from material selection and forging to heat treatment and precision threading, making the city a key supplier of high-quality industrial fasteners to global markets.
Ningbo has established itself as a premier hub for fastener manufacturing in China, with the industry concentrated in industrial zones throughout Zhejiang province, including Zhenhai, Beilun, and Xiangshan districts. Local manufacturers have developed comprehensive production capabilities, from material selection and forging to heat treatment and precision threading, making the city a key supplier of high-quality industrial fasteners to global markets.
TheNingbo Hex Head Bolts featured here are engineered specifically for demanding high-pressure environments. Each bolt measures 70mm in length with a 7/8-inch diameter, meeting the stringent requirements of the ASME B18.2.1 standard for square and hex bolts. Manufactured from ASTM A320 Gr.8M material with matching A194 8M nuts—AISI 316 stainless steel carbide solution treated—these fasteners provide exceptional corrosion resistance and maintain their integrity at elevated temperatures.
The hexagonal head design enables efficient installation and removal using standard wrenches or torque tools, significantly reducing maintenance time in critical applications. Precision threading ensures reliable connections that prevent leaks and maintain system integrity under extreme pressures. With tensile strength exceeding 515 MPa and yield strength of 205 MPa, these bolts deliver robust performance in the most challenging conditions.
These Ningbo Hex Head Bolts are ideally suited for applications across oil and gas wellheads, petrochemical processing equipment, pressure vessels, heat exchangers, hydraulic systems, and offshore drilling platforms. They are equally effective in the aerospace and automotive industries where fastener reliability is mission-critical. The ASTM A194 8M nuts, specifically designed for high-temperature service, ensure complete assembly compatibility.
Ningbo's fastener industry has matured significantly, with local manufacturers implementing rigorous quality control processes and maintaining ISO certifications. Many facilities operate with in-house testing laboratories capable of complete physical and chemical analysis, ensuring every batch meets ASTM and ASME specifications. With production capacities reaching tens of thousands of tons annually, Ningbo's fastener sector combines industrial-scale manufacturing with precision engineering expertise.
For engineers specifying critical fastening solutions in high-pressure systems, these Ningbo Hex Head Bolts offer the proven reliability, material integrity, and dimensional accuracy required for safe, long-term service in the most demanding industrial applications.
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