S-8077A417 10-32 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and chemical exposure
• Enhanced durability and wear resistance from the Black Oxide finish, providing long-lasting performance
• Precise alignment and reduced assembly time with Class 3A thread fit for consistent, reliable fastening
• High mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for demanding applications
• Secure grip and easy installation with a knurled head and hex drive, minimizing slippage during torque application
• Compliance with industry standards including ASME B18.3, ensuring quality and interchangeability
• Environmental and safety adherence with RoHS 3 and REACH compliance, suitable for regulated industries

Professional Applications & Engineering Value

This 10-32 UNF thread shoulder screw is engineered to address critical challenges in precision machinery, automation, and industrial equipment. The 316 Stainless Steel material provides exceptional corrosion resistance, making it ideal for applications in marine, chemical processing, and food industries where moisture and corrosive agents are prevalent. The Black Oxide finish not only enhances aesthetics but also adds a protective layer against wear and galling. With a Class 3A thread fit and fine thread spacing, it ensures tight tolerances and vibration resistance, reducing the risk of loosening in dynamic environments. The shoulder design allows for precise component alignment, minimizing misalignment issues in assemblies like bearings, pulleys, and linkages. This fastener delivers reliable performance in high-stress conditions, supporting efficient maintenance and extended service life in industrial applications.

Specification Summary & Compliance

This shoulder screw features a 10-32 UNF thread with Class 3A fit for high precision, ensuring tight dimensional control per ASME B18.3 standards. The shoulder diameter tolerance ranges from -0.004" to -0.002", and shoulder length tolerance from -0.005" to 0.005", providing consistent assembly performance. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and material restrictions adherence.