S-97832A256 5/8"-11 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction for long-lasting performance in harsh environments.
• Exceptional mechanical strength offering 70,000 psi tensile strength and 35,000 psi minimum shear strength for demanding applications.
• Precise alignment and reduced wear thanks to the 3/4" shoulder diameter with tight tolerances for stable component positioning.
• Reliable, coarse UNC threading with Class 3A fit ensures secure fastening and easy assembly in high-vibration settings.
• Enhanced grip and torque application from the knurled socket head, preventing tool slippage during installation.
• Compliance with industry standards including ASME B18.3, ensuring consistent quality and interchangeability.
• Environmental and safety adherence with RoHS 3 and REACH compliance for sustainable and safe industrial use.

Professional Applications & Engineering Value

This 5/8"-11 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 material provides excellent corrosion resistance, reducing maintenance in moist or chemical-exposed environments. Its 3/4" shoulder diameter with minimal tolerance allows for exact positioning of moving parts, minimizing wear and preventing misalignment. The coarse UNC thread and Class 3A fit deliver reliable fastening under high stress, while the knurled socket head ensures secure tool engagement for efficient assembly. Ideal for applications requiring robust shear strength and long-term reliability, this screw supports seamless integration in heavy-duty and high-precision assemblies.

Specification Summary & Compliance

This shoulder screw features a 5/8"-11 UNC coarse thread with Class 3A fit for precise thread engagement. The shoulder diameter is 3/4" with a tolerance of -0.004" to -0.002", and shoulder length is 1 1/8" with a tolerance of -0.005" to 0.005", ensuring dimensional accuracy. It complies with ASME B18.3 specifications for consistent manufacturing standards. Additionally, the product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for industrial use.