S-93985A404 5/16"-18 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 416 Stainless Steel construction, ideal for harsh industrial environments
• Precise component alignment through exact shoulder diameter (3/8") and length (5/8") with tight tolerances
• High-strength performance with 120,000 psi tensile strength and Rockwell C26 hardness for demanding applications
• Secure hex socket drive (3/16") provides reliable torque transmission and prevents stripping
• Easy installation with UNC coarse thread (5/16"-18) and Class 2A fit for quick assembly
• Regulatory compliance with RoHS 3 and REACH standards for global industrial use
• Smooth head texture ensures clean appearance and prevents surface damage

Professional Applications & Engineering Value

This precision shoulder screw delivers exceptional engineering value in mechanical assemblies requiring exact component positioning. The 416 Stainless Steel construction provides excellent corrosion resistance while maintaining Rockwell C26 hardness for long-term durability. The precise shoulder fit with controlled diameter and length tolerances ensures accurate alignment in rotating mechanisms, pivot points, and guide applications. The UNC coarse thread with Class 2A fit offers reliable fastening in industrial equipment, while the hex socket head allows for secure tool engagement in confined spaces. This combination solves critical alignment and corrosion challenges in machinery, automotive, and manufacturing applications.

Specification Summary & Compliance

This shoulder screw features 5/16"-18 UNC thread with Class 2A fit and precise shoulder dimensions (3/8" diameter, 5/8" length) with tight tolerances. Manufactured from 416 Stainless Steel with 120,000 psi tensile strength and Rockwell C26 hardness. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for environmental safety and industrial use.