S-93985A209 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior Strength & Durability: Made from 416 Stainless Steel with a tensile strength of 120,000 psi and Rockwell C26 hardness for excellent resistance to wear and corrosion in demanding environments.
• Precise Shoulder for Accurate Alignment: Features a smooth, precisely machined 1-1/4" shoulder diameter with a tight tolerance to ensure stable component positioning and reduce assembly misalignment.
• Reliable Thread Engagement: The 8-32 UNC coarse thread with Class 2A fit provides strong, secure fastening and easier assembly in various materials.
• Convenient Hex Socket Drive: The 3/32" hex drive allows for high-torque installation and removal with standard tools, minimizing slippage and tool wear.
• Compliant for Global Use: Meets RoHS 3 and REACH regulations, ensuring environmental safety and suitability for international industrial markets.
• Optimized Thread Length: The 3/16" thread length is designed for efficient fastening without excess material, saving space and weight in assemblies.
• Right-Hand Thread for Standard Applications: The right-hand thread direction ensures compatibility with common assembly practices and equipment.

Professional Applications & Engineering Value

This 8-32 UNC shoulder screw is engineered to address critical alignment and stability challenges in industrial machinery, automation systems, and precision equipment. Constructed from 416 Stainless Steel, it offers robust corrosion resistance and mechanical strength, ideal for high-stress environments. The precise shoulder with minimal diameter tolerance acts as a reliable pivot or spacer, reducing vibration and wear in rotating assemblies. The coarse UNC thread ensures quick, secure fastening in metals and plastics, while the hex socket head facilitates easy access in confined spaces. Commonly used in robotics, conveyor systems, and electronic enclosures, this screw enhances assembly accuracy and longevity, supporting efficient maintenance and reduced downtime.

Specification Summary & Compliance

This shoulder screw adheres to Class 2A thread fit for consistent dimensional accuracy and reliable performance. It conforms to UNC thread standards with an 8-32 size and coarse spacing. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances. The shoulder features precise tolerances (diameter: -0.001" to 0", length: 0" to 0.002") for exacting engineering applications.