S-90281A880 7/8"-9 x 4" DIN 939 Setup Studs

Key Features & Benefits at a Glance

• Exceptional Durability: Black-oxide steel construction provides superior corrosion resistance for extended service life in demanding industrial environments.
• High Tensile Strength: 125,000 psi minimum tensile strength ensures reliable performance under heavy loads and high-stress applications.
• Precision Thread Fit: Class 2A thread fit guarantees consistent, secure fastening with reduced risk of cross-threading during assembly.
• Double-Ended Threading: 1-1/2" threading on both ends enables versatile installation and efficient setup in various machinery configurations.
• Standardized Compliance: DIN 939 specification ensures dimensional accuracy and interchangeability with other compliant components.
• Enhanced Hardness: Rockwell C22 minimum hardness provides excellent wear resistance for repeated use in production environments.
• Environmental Compliance: RoHS 3 and REACH compliance meets international regulatory standards for hazardous substance restrictions.

Professional Applications & Engineering Value

These 7/8"-9 threaded setup studs deliver critical engineering value in industrial applications where precision alignment and reliable fastening are paramount. The black-oxide steel material offers enhanced corrosion protection, making these double threaded studs ideal for machinery setup, fixture mounting, and production line applications exposed to oils, coolants, and moderate environmental conditions. The combination of 125,000 psi tensile strength and Class 2A thread fit ensures secure connections in high-vibration environments while maintaining dimensional stability. With 1-1/2" threading on both ends, these DIN 939 studs provide versatile installation options for temporary fixtures, permanent mounts, and precision tooling setups where repeated assembly and disassembly are required without compromising thread integrity.

Specification Summary & Compliance

These setup studs feature precision Class 2A thread fit with 7/8"-9 thread size and 4" overall length, manufactured to DIN 939 specifications for dimensional accuracy. The components meet 125,000 psi minimum tensile strength and Rockwell C22 minimum hardness requirements. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures adherence to international environmental and safety standards for industrial applications.