S-93985A503 3/8"-16 Shoulder Screws

Key Features & Benefits at a Glance

• Precision alignment capabilities with exact 1/2" shoulder diameter and tight tolerances for reliable component positioning
• Exceptional corrosion resistance through 416 stainless steel construction suitable for demanding industrial environments
• High-strength performance with 120,000 psi tensile strength and Rockwell C26 hardness for heavy-duty applications
• Secure hex drive engagement with 1/4" drive size providing positive torque transmission and reduced stripping risk
• Reliable thread performance with Class 2A UNC coarse threads ensuring consistent fastening and easy assembly
• Environmental compliance assurance meeting RoHS 3 and REACH regulations for global manufacturing requirements
• Optimized shoulder design with precise length and diameter tolerances for accurate bearing surfaces and pivot points

Professional Applications & Engineering Value

This 416 stainless steel shoulder screw delivers critical engineering value in applications requiring precise rotational alignment and durable fastening solutions. The 1/2" shoulder diameter with tight manufacturing tolerances provides an exact bearing surface for gears, pulleys, and linkages, eliminating the need for additional bushings or spacers. The 3/8"-16 UNC coarse thread with Class 2A fit ensures rapid assembly while maintaining vibration resistance in machinery, automation equipment, and precision instruments. The socket head design with hex drive allows for high torque application in confined spaces, while the 120,000 psi tensile strength guarantees reliable performance under dynamic loads and stressful operating conditions common in industrial manufacturing environments.

Specification Summary & Compliance

This precision shoulder screw features Class 2A thread fit with UNC coarse thread profile, manufactured to exact dimensional specifications including shoulder diameter tolerance of -0.001" to 0" and shoulder length tolerance of 0" to 0.002". The component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications requiring restricted substance compliance. The mechanical properties including Rockwell C26 hardness and 120,000 psi tensile strength meet rigorous industrial fastening requirements for durability and performance.