S-90281A642 3/8"-16 x 4 1/2" DIN 939 Setup Studs

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with black-oxide steel coating for prolonged service life in demanding industrial environments
• Precise thread engagement with Class 2A fit ensuring reliable assembly and reduced risk of cross-threading
• High tensile strength of 125,000 psi provides exceptional load-bearing capacity for secure fastening in heavy-duty applications
• Uniform threading on both ends (1 1/4" each) enables versatile installation and consistent performance in setup operations
• Rockwell C22 hardness maintains structural integrity under repeated stress and vibration
• Compliance with DIN 939 standards guarantees dimensional accuracy and interchangeability in precision engineering systems
• Environmental regulation compliance with RoHS 3 and REACH ensures safe use in regulated industries and global markets

Professional Applications & Engineering Value

These DIN 939 setup studs are engineered to address critical challenges in precision assembly and machinery setup. The black-oxide steel construction provides superior corrosion resistance, essential for maintaining performance in humid or chemically exposed industrial environments. With 3/8"-16 threading on both ends and a Class 2A thread fit, these studs ensure rapid, accurate alignment in jigs, fixtures, and modular systems, reducing installation time and minimizing assembly errors. The balanced thread length of 1 1/4" on each end offers optimal grip and load distribution, making them ideal for applications requiring repeated adjustments or disassembly. Their high 125,000 psi tensile strength and Rockwell C22 hardness provide reliable performance in high-stress setups, from CNC machining centers to automotive assembly lines, ensuring long-term operational stability and reduced maintenance costs.

Specification Summary & Compliance

These setup studs adhere to DIN 939 specifications with Class 2A thread fit for precise dimensional tolerance. The 3/8"-16 thread size and 4 1/2" length are manufactured to exact inch system standards. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety requirements for industrial components.