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ASTM A193 B7 High Tensile Stud Bolts – Headless, double-ended threaded fasteners manufactured from alloy steel (AISI 4140/4142) per ASTM A193 Grade B7 specification. Designed for high-temperature and high-pressure bolting applications including pressure vessels, valves, flanges, and piping systems in oil & gas, petrochemical, and power generation industries. Available in full or partial thread, imperial (1/4″–4″) and metric (M6–M100) sizes, with plain, zinc-plated, hot-dipped galvanized, or PTFE-coated finishes. Supplied with matching ASTM A194 Grade 2H heavy hex nuts and backed by mill test reports (MTRs) and full material traceability
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