S-90281A915 5/8"-11 x 18" Setup Studs

Key Features & Benefits at a Glance

• Exceptional Tensile Strength – With a minimum tensile strength of 125,000 psi, these studs provide reliable load-bearing capacity for demanding industrial setups.
• Corrosion-Resistant Black-Oxide Finish – The black-oxide steel surface offers enhanced durability and protection against rust in harsh environments.
• Precision Class 2A Thread Fit – Ensures easy assembly and secure fastening with consistent thread engagement, reducing the risk of cross-threading.
• Double-Ended Threading – Threaded on both ends with 1 3/4" length each, allowing versatile and balanced connections in machinery and fixtures.
• High Hardness Rating – Rockwell C27 hardness ensures resistance to wear and deformation under repeated use.
• Full Regulatory Compliance – Meets RoHS 3 and REACH standards, making them safe for use in regulated industries and international markets.
• Standard Inch Sizing – 5/8"-11 thread size and 18" length conform to common industrial specifications for seamless integration.

Professional Applications & Engineering Value

These black-oxide steel setup studs are engineered to address common challenges in industrial assembly, such as vibration loosening and material fatigue. The 5/8"-11 threading on both ends with a Class 2A thread fit ensures precise alignment and uniform stress distribution, which is critical in heavy-duty applications like machinery bases, structural frameworks, and fixture setups. The high tensile strength of 125,000 psi and Rockwell C27 hardness provide long-term reliability, reducing maintenance needs and downtime. Ideal for sectors requiring robust and compliant fasteners, including automotive, construction, and manufacturing, these studs deliver consistent performance under high-stress conditions while adhering to environmental and safety standards.

Specification Summary & Compliance

This setup stud features an 18" length with 1 3/4" thread length on each end, manufactured to Class 2A thread fit tolerances for precise engagement. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring no hazardous substances are used. The stud meets industry standards for inch-based measurements and is suitable for applications requiring high strength and durability.