As a trusted wholesale B7 stud bolt manufacturer, HardHawk supplies large volumes of precision-engineered B7 stud bolts designed for oil & gas, power generation, petrochemical plants, and heavy machinery industries. With strict compliance to ASTM A193 Grade B7 standards, our factory ensures exceptional tensile strength, heat resistance, and durability for the most demanding environments.
What Are B7 Stud Bolts?
B7 stud bolts are high-strength fasteners manufactured from chromium-molybdenum alloy steel and heat-treated for superior mechanical performance. They are primarily used with 2H heavy hex nuts in pressure vessels, pipelines, and flanges where high temperature and high pressure conditions exist.
Available Specifications:
- Sizes: M6 โ M72, 1/4″ โ 3″
- Lengths: 30mm โ 2000mm
- Threads: Metric, UNC, UNF, BSW
- Grades: B7, B7M, L7, L7M
- Nuts & Washers: ASTM A194 Grade 2H, 4, 7, 8, etc.
- Coatings: Black oxide, zinc plating, hot-dip galvanizing, PTFE
Applications of B7 Stud Bolts
- Petrochemical and refinery plants
- High-pressure pipelines and valves
- Power generation and boilers
- Offshore drilling and marine engineering
- Structural steel and industrial assemblies
Why Partner with HardHawk as Your B7 Stud Bolt Manufacturer?
- Wholesale Production Capacity โ Capable of mass production for large-scale projects and distributor stock supply.
- Strict Quality Control โ Tensile, hardness, and impact testing for every batch.
- Wide Range of Sizes & Grades โ Covering ASTM A193 B7, B7M, L7, L7M.
- OEM Customization โ Special lengths, threads, or coatings available upon request.
- Competitive Pricing & Fast Delivery โ Supporting global distributors with reliable supply chains.
Global Supply of B7 Stud Bolts
At HardHawk, we export B7 stud bolts with 2H nuts and hardened washers to customers across North America, Europe, the Middle East, and Asia. Whether you are a fastener distributor, EPC contractor, or industrial supplier, we deliver wholesale solutions tailored to your project needs.
๐ Get a wholesale quotation today:
๐ https://hardhawk.cn/