Grade 12.9 Corrosion Resistant NACE MR0175 Compliant Bolts and Nuts for Sour Gas Service

Our BOLTS and Nuts product line represents engineering excellence and reliability, designed to meet rigorous industrial demands. Manufactured with the highest standards, these fasteners undergo stringent quality control with 100% inspection for defects, precision, and durability.

Crafted from Grade 12.9 steel known for exceptional strength and toughness, these fasteners are ideal for heavy-duty applications where safety and performance are critical. Dimensions are precisely defined by engineering drawings with tolerance levels customized to customer requirements.

• Product Name: BOLTS and Nuts
• Tensile Strength: 800 MPa
• Grade: 12.9
• Weight per Piece: Varies By Size
• Head Type: Hex Head
• Nut Type: Hex Nut
• Complies with ASTM A320 L7M low temperature bolting standards
• Made from duplex stainless steel bolts and nuts S31803 for enhanced corrosion resistance
• Includes ASTM A193 B8M Class 2 stainless steel stud bolts (SS316)

These high-quality fasteners are essential in industrial and construction applications requiring secure fastening in mechanical assemblies. With tensile strength of at least 410 MPa, they are suitable for demanding environments where durability and reliability are critical.

Primary applications include automotive manufacturing, heavy machinery assembly, structural engineering, chemical processing plants, refineries, power generation facilities, marine applications, offshore platforms, and petrochemical plants.

We offer comprehensive customization services with tensile strength of σb/MPa≥ 410, available in sizes OD70, 80, and 100mm. Various quality levels including 12.9, 10.9, 8.8, 6.8, and 4.8 grades are available to meet different mechanical property needs.

Customization includes hex nuts as standard, with tolerance levels tailored precisely to customer requirements. We specialize in manufacturing bolting products compliant with ASTM standards including ASTM A320 L7M, ASTM A193 B8M Class 2, and DIN 912 socket head cap screws class 12.9.

Our comprehensive technical support includes product selection guidance, technical specifications clarification, and compatibility advice. We provide detailed information on material properties, strength grades, and coatings to meet various industry standards.

Our experts support installation best practices, torque recommendations, and maintenance tips. We offer custom solutions and bulk order services tailored to specific project requirements, with technical assistance for troubleshooting and alternative solutions.