S-91273A246 5/8"-11 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ensuring long-term reliability in harsh industrial environments.
• High tensile strength of 70,000 psi provides dependable load-bearing capacity for demanding mechanical assemblies.
• Precision Class 2A thread fit guarantees smooth installation and secure fastening with consistent engagement.
• Knurled hex socket head offers enhanced grip and slip resistance during tool operation, improving assembly efficiency.
• Accurate 1/2" shoulder length with tight tolerances enables precise component alignment and rotational control.
• Full compliance with RoHS 3 and REACH regulations ensures environmental safety and global market acceptance.
• Coarse UNC thread profile facilitates quick assembly and disassembly while maintaining strong holding power.

Professional Applications & Engineering Value

This 5/8"-11 UNC shoulder screw delivers exceptional engineering value in precision machinery and industrial equipment. The 18-8 Stainless Steel composition provides excellent corrosion resistance, making it ideal for applications exposed to moisture, chemicals, or outdoor conditions. The hex socket drive combined with knurled head texture ensures secure tool engagement, preventing cam-out during high-torque installation. The precisely machined shoulder section serves as a bearing surface or pivot point in assemblies, maintaining accurate alignment between components while withstanding rotational forces. With its 70,000 psi tensile strength and Rockwell B55 hardness, this fastener reliably supports heavy loads in automation systems, conveyor mechanisms, and precision instruments where dimensional stability and corrosion resistance are critical.

Specification Summary & Compliance

This shoulder screw features 5/8"-11 UNC coarse threads with Class 2A thread fit for standard industrial applications. The shoulder maintains precise dimensions with diameter tolerance of -0.004" to -0.002" and length tolerance of -0.005" to 0.005". Manufactured to industry standards, this fastener is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental and safety regulations for hazardous substances.