S-93996A858 10-32 Shoulder Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking: Integrated nylon patch thread locker maintains secure fastening from -70° to 250°F, preventing loosening in dynamic applications
• Exceptional corrosion resistance: 18-8 stainless steel construction provides reliable performance in harsh environments and demanding industrial conditions
• Precision engineering: Class 2A thread fit and precise shoulder diameter ensure consistent alignment and smooth assembly in precision mechanisms
• High strength durability: 70,000 psi tensile strength and Rockwell B55 hardness deliver reliable performance under substantial mechanical stress
• Secure installation: Hex socket drive design allows for high torque application while preventing tool slippage and head damage
• Regulatory compliance: Meets RoHS 3 and REACH environmental standards for use in regulated industries and international markets
• Fine thread advantage: 10-32 UNF thread profile provides superior clamping force and vibration resistance compared to coarse threads

Professional Applications & Engineering Value

This precision shoulder screw delivers exceptional engineering value in applications requiring exact alignment and vibration resistance. The 18-8 stainless steel construction ensures corrosion resistance in demanding environments, while the nylon patch thread locker eliminates the need for separate locking components, reducing assembly time and costs. The precise shoulder diameter with minimal tolerance provides accurate pivot points and bearing surfaces in machinery, robotics, and precision instruments. With UNF fine threads and Class 2A fit, this fastener maintains consistent clamping force in high-vibration applications such as automotive assemblies, industrial equipment, and electronic enclosures. The combination of 70,000 psi tensile strength and Rockwell B55 hardness ensures long-term reliability in critical mechanical systems where failure is not an option.

Specification Summary & Compliance

This shoulder screw features Class 2A thread fit with 10-32 UNF fine thread specification, ensuring precise engagement and consistent performance. The shoulder maintains tight dimensional control with diameter tolerance of -0.001" to 0" and length tolerance of 0" to 0.002". Manufactured to industry standards, this fastener is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting the latest environmental regulations for hazardous substances. The combination of precise manufacturing tolerances and certified material composition makes this shoulder screw suitable for regulated industries and quality-conscious applications.