S-8077A536 5/8"-11 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure
• Enhanced durability and wear resistance from the black oxide finish, providing long-lasting performance and reduced maintenance
• Precise component alignment with a 3/4" shoulder diameter and 6 1/2" shoulder length, ensuring stable rotational movement in machinery
• High-strength performance offering 70,000 psi tensile strength and 35,000 psi minimum shear strength for demanding applications
• Secure, non-slip installation with a knurled socket head and 3/8" hex drive, allowing for reliable torque application
• Accurate thread engagement due to Class 3A thread fit and UNC coarse threading, reducing cross-threading risks
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and regulatory adherence

Professional Applications & Engineering Value

This 5/8"-11 UNC shoulder screw is engineered to address critical alignment and load-bearing challenges in industrial machinery. The 316 stainless steel material provides exceptional resistance to corrosion and oxidation, making it suitable for applications in marine, chemical processing, and food manufacturing where moisture and chemicals are prevalent. The black oxide finish not only enhances corrosion protection but also reduces galling during assembly. With its precision shoulder dimensions (3/4" diameter and 6 1/2" length), this screw ensures accurate positioning of moving parts like gears, pulleys, and bearings, minimizing vibration and wear. The socket head with hex drive allows for easy installation in confined spaces, while the Class 3A thread fit guarantees secure fastening in high-stress environments. Ideal for robotics, conveyor systems, and automotive assemblies, this component delivers reliable performance and extended service life.

Specification Summary & Compliance

This shoulder screw features a Class 3A thread fit with UNC coarse threading (5/8"-11) for precise tolerance control. Shoulder diameter tolerance is -0.004" to -0.002", and shoulder length tolerance is -0.005" to 0.005", ensuring consistent dimensional accuracy. It meets ASME B18.3 specifications for socket head shoulder screws and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and safe for various industrial uses.