ASTM A193 Grade B7 fully threaded rods and studs provide high wear resistance, high temperature resistance, and high strength. - Made of alloy steel that has been heat treated, they are typically used in high pressure applications, such as valves and pressure vessels in petroleum and chemical equipment.- Steel fully threaded rods and studs are fasteners that provide good strength and durability for a variety of everyday fastening applications. - They are made to meet certain strength requirements, indicated by an ASTM grade rating (inch fasteners) or a class rating (metric fasteners). - These steel fasteners have males threads running their entire length for full engagement of nuts when assembling components. System of Measurement / Inch Threaded Rod Material / Steel Threaded Rod Material Grade / Grade B7 Threaded Rod Finish / Black Oxide Thread Size / 1-1/4"-8 Length / 7 in Thread Direction / Right Hand Threaded Rod Thread Type / 8UN Meets/Exceeds / ASTM A193 Min. Tensile Strength / 125,000 psi Rockwell Hardness / C35 Max Temp. Range / 700 Degrees F Max Thread Class / 2A Yield Strength / 105,000 psi