S-90281A883 7/8"-9 x 7" 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 performance in high-stress applications, reducing the risk of failure.
• Corrosion-Resistant Black-Oxide Finish – The black-oxide steel surface offers enhanced durability and protection against rust, extending service life in harsh industrial environments.
• Precision Thread Fit – Class 2A thread fit ensures smooth assembly and secure fastening, minimizing play and improving joint integrity.
• Dual-End Threading for Versatility – Threaded on both ends with 2-1/4" thread lengths each, allowing flexible installation and efficient setup in machinery and fixtures.
• High Hardness for Wear Resistance – Rockwell C22 hardness provides excellent resistance to wear and deformation, maintaining dimensional stability under load.
• Compliance with International Standards – Meets DIN 939 specifications, ensuring consistent quality and interchangeability in global engineering applications.
• Environmental and Safety Compliance – RoHS 3 and REACH compliant, supporting sustainable manufacturing and safe use in regulated industries.

Professional Applications & Engineering Value

These 7/8"-9 threaded setup studs are engineered to address critical challenges in precision assembly and industrial machinery. The black-oxide steel construction offers superior corrosion resistance, ideal for environments exposed to moisture or chemicals, while the Class 2A thread fit ensures accurate engagement and reduces the risk of cross-threading. With threads on both ends and equal thread lengths, they facilitate quick alignment and secure mounting in fixtures, jigs, and automated systems. The high 125,000 psi tensile strength and Rockwell C22 hardness provide dependable performance under dynamic loads, minimizing downtime and maintenance. Compliant with DIN 939, these studs deliver consistent dimensions and reliability, making them suitable for automotive, manufacturing, and heavy equipment applications where precision and durability are paramount.

Specification Summary & Compliance

This product features a 7/8"-9 thread size with Class 2A thread fit per standard inch system tolerances, ensuring precise threading and ease of assembly. Thread lengths are 2-1/4" on both ends, and the studs are manufactured from black-oxide steel with a minimum tensile strength of 125,000 psi and Rockwell C22 hardness. They conform to DIN 939 specifications for dimensional accuracy and performance. Additionally, compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards is confirmed, supporting environmental safety and regulatory requirements in industrial use.