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Plain 193 Grade B7 Heavy Hex Bolt (Inch)
These ASTM A193 Grade B7 heavy hex bolts are manufactured from alloy steel and supplied in a plain (uncoated) finish. Engineered for high-temperature and high-pressure service, they’re commonly used in flanges, pressure vessels, power generation, and petrochemical applications where strength and reliability are essential.
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Offered in inch sizes with a larger heavy hex head for better wrenching surface and torque transmission. Ideal for industrial bolting jobs requiring durability, heat resistance, and consistent clamping force.
