ASTM A320 L7 Low Temperature Alloy Steel Bolts with HRC≥50 Hardness for Industrial Fastening

Our Bolts and Nuts product line is engineered to meet the highest standards of quality and performance for demanding industrial applications. Featuring Coach Bolt design, these fasteners deliver superior strength and reliability with 100% quality inspection to ensure flawless performance under stress.

• Custom-shaped cross section for enhanced mechanical interlock and load distribution
• High hardness rating (HRC≥50) for exceptional durability and wear resistance
• 100% quality control inspection for guaranteed performance
• Includes A193 B7 hex bolts with A194 2H heavy hex nuts
• Manufactured with ASTM A449 high strength carbon steel
• Available in super duplex stainless steel bolts S32750 / S32760
• Processing types include forging and high strength manufacturing

Our bolts and nuts are essential components across multiple industries:

• Marine and offshore applications with ISO 3506 A4-80 stainless steel bolts
• Chemical processing plants requiring corrosion resistance
• Automotive and construction industries with ISO 898-1 class 10.9 alloy steel bolts
• Structural applications with EN 14399-1 HV 10.9 preloaded assemblies
• Piping systems with ASME B16.5 flange connections
• General industrial machinery and equipment

We offer comprehensive customization services to meet your specific requirements:

• Custom sizes including M20, M24, M27, M30, M36, M42, and M45
• Compliance with ASTM A320 L7M low temperature bolting
• EN 14399-1 HV 10.9 preloaded structural bolting assemblies
• ISO 898-1 class 8.8 high tensile bolts and nuts
• Custom threading, coating, and sizing options
• Customized included parts for specific applications

Our dedicated team provides comprehensive technical support including:

• Expert guidance on material selection and grade specifications
• Detailed installation instructions and torque specifications
• Inspection and testing services for quality verification
• Troubleshooting and performance issue resolution
• Maintenance recommendations for extended fastener lifespan