Haihao Group Supplies B7 Stud Bolts and 2H Nuts for International Project

Haihao Group has recently completed the production and shipment of ASTM A193 Grade B7 stud bolts and ASTM A194 Grade 2H nuts for an international customer. The order includes multiple specifications, ranging from M16x100 to M33x250, covering common dimensions required for industrial piping and flange connections.

These B7 stud bolts and 2H nuts were precisely manufactured according to international standards, ensuring high mechanical strength, excellent temperature resistance, and long-term performance even in demanding environments.

Shipment of ASTM A193 B7 stud bolts and ASTM A194 2H nuts ready for export Haihao Group

Details of the Order

Each fastener was inspected to meet ASTM A193 and ASTM A194 mechanical and dimensional requirements. Thread accuracy, hardness, and tensile strength were all verified before packaging to ensure complete reliability in service.

Engineered for Strength and Reliability

B7 stud bolts and 2H nuts are widely used in high-pressure and high-temperature environments such as refineries, petrochemical plants, and power stations. Their combination of chromium-molybdenum steel and quenched-tempered heat treatment provides superior tensile strength and excellent resistance to hydrogen embrittlement and corrosion.

Haihao Group’s strict quality control—from material sourcing to final inspection—ensures every bolt and nut meets project requirements and industry standards.

Trusted Partner for Bolting Solutions

As a leading bolting materials manufacturer in China, Haihao Group provides a complete range of stud bolts, hex bolts, nuts, washers, and gaskets. Our fasteners are compatible with ASME, ASTM, DIN, and ISO standards, making them suitable for oil & gas, marine, construction, and energy industries.

Whether it’s a standard B7 stud bolt with 2H nut or a customized bolting solution, Haihao Group offers precision, consistency, and timely delivery for every order.