S-91054A477 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced Durability: TiCN coating provides superior wear and corrosion resistance, extending service life in demanding industrial environments.
• High Tensile Strength: 70,000 psi tensile strength ensures reliable fastening under high-stress conditions, reducing the risk of failure.
• Precise Alignment: 3/16" shoulder length with tight tolerances (±0.003") guarantees accurate component positioning and smooth rotational movement.
• Corrosion Resistance: 18-8 stainless steel construction offers excellent resistance to rust and oxidation, ideal for harsh or outdoor applications.
• Easy Installation: Hex drive (3/32") and socket head design allow for quick, secure tightening with standard tools, minimizing assembly time.
• Consistent Thread Fit: Class 2A UNC coarse threads ensure easy engagement and reliable performance in repetitive assembly tasks.
• Regulatory Compliance: Meets RoHS 3 and REACH standards, ensuring safety and environmental responsibility for global supply chains.

Professional Applications & Engineering Value

This 8-32 UNC shoulder screw is engineered to address critical alignment and durability challenges in industrial machinery, automation systems, and precision equipment. The 18-8 stainless steel base material combined with a TiCN coating significantly enhances wear resistance, making it suitable for high-friction applications like rotating shafts, pivots, and bearing mounts. The 3/16" shoulder length with precise tolerances ensures components remain securely positioned, reducing misalignment and vibration-induced wear. With a Rockwell B55 hardness and 70,000 psi tensile strength, it withstands heavy loads and repetitive motion, offering long-term reliability in manufacturing, robotics, and automotive assemblies where socket head design facilitates easy maintenance and adjustments.

Specification Summary & Compliance

This shoulder screw features a Class 2A thread fit with UNC coarse threads (8-32 size) for consistent engagement, and a shoulder diameter tolerance of -0.002" to 0" for precise fits. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for use in regulated industries. Manufactured to high standards, it meets typical industrial specifications for dimensional accuracy and mechanical performance.