S-90281A812 5/8"-11 x 4 1/2" DIN 939 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 Coating – The black-oxide steel material offers enhanced durability and protection against rust in harsh environments.
• Precision Thread Fit – Class 2A thread fit ensures smooth assembly and secure fastening, reducing the risk of cross-threading and improving installation efficiency.
• Double-Ended Threading – Threaded on both ends with 5/8"-11 threads and equal 1 3/4" thread lengths, enabling versatile and balanced connections in machinery and fixtures.
• High Hardness for Longevity – Rockwell C22 minimum hardness ensures resistance to wear and deformation, extending the stud's service life under repetitive use.
• International Standard Compliance – Meets DIN 939 specifications, ensuring compatibility and reliability in global engineering applications.
• Environmental and Safety Compliance – RoHS 3 and REACH compliant, making these studs safe for use in regulated industries without hazardous substances.

Professional Applications & Engineering Value

These black-oxide steel setup studs are engineered to address common challenges in industrial assembly, such as alignment precision and vibration resistance. The 5/8"-11 threading on both ends with a Class 2A fit allows for quick, accurate installation in jigs, fixtures, and machinery, minimizing downtime. Made from high-strength steel with a black-oxide surface treatment, they resist corrosion and wear in demanding environments like automotive manufacturing, metalworking, and construction. The DIN 939 compliance ensures consistent performance in European and international projects, while the balanced design with equal thread lengths enhances stability, reducing the risk of loosening under dynamic loads. Ideal for heavy-duty applications, these studs deliver reliable clamping force and durability, supporting efficient production workflows.

Specification Summary & Compliance

This setup stud features a 4 1/2" length with 1 3/4" thread lengths on both ends, 5/8"-11 thread size, and Class 2A thread fit for precise dimensional accuracy. It meets DIN 939 manufacturing standards and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity.