Description
1-1/8" 8UN x 107MM bolt is manufactured from ASTM A193 Grade B7M alloy steel, specifically engineered for high-pressure, high-temperature, and critical industrial applications.
Grade B7M is a modified version of B7, offering controlled hardness and improved resistance to stress corrosion cracking, making it ideal for use in oil & gas, petrochemical, and offshore environments.
With precise 8UN threading, this bolt ensures a secure, stable fit and long-lasting performance even under extreme operating conditions.
Specifications
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Diameter: 1-1/8 inch
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Thread Type: 8UN (Unified National)
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Length: 107 mm
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Material Grade: ASTM A193 Grade B7M
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Material Type: Heat-treated alloy steel
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Hardness: Controlled (lower than standard B7 for enhanced ductility)
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Finish: (add if available: PTFE / Black Oxide / Zinc / Plain)
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Standard Compliance: ASTM A193
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Application: Oil & Gas, Petrochemical, Offshore, Power Plants, Heavy Machinery
Key Features / Selling Points
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B7M grade – safer for critical environments (reduced cracking risk)
- High strength with improved ductility
- Resistant to stress corrosion cracking
- Precision 8UN threading for tight, secure fastening
- Reliable in high-pressure & high-temperature systems
