S-91327A107 10-24 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Vibration-resistant performance with integrated nylon patch thread locker, maintaining secure fastening from -50° to 250°F in demanding industrial environments
• Exceptional corrosion resistance thanks to 18-8 stainless steel construction with passivated finish, ensuring longevity in harsh operating conditions
• Precision alignment and smooth rotation enabled by the 3/8" shoulder length with tight diameter tolerance for accurate component positioning
• Superior thread reliability through Class 3A fit UNC coarse threads, providing consistent engagement and reduced risk of cross-threading
• High-strength durability with 70,000 psi tensile strength and Rockwell B55 hardness, capable of withstanding heavy mechanical loads
• Secure installation and removal featuring hex socket drive with knurled head for improved grip and torque application during assembly
• Regulatory compliance assurance meeting ASME B18.3 standards while being RoHS 3 and REACH compliant for global industrial applications

Professional Applications & Engineering Value

This 18-8 stainless steel shoulder screw delivers critical engineering solutions for precision assembly challenges where component alignment and vibration resistance are paramount. The 3/8" shoulder length with controlled diameter tolerance provides an exact locating surface for rotating components in automation equipment, while the 10-24 UNC coarse thread with Class 3A fit ensures rapid assembly without compromising thread integrity. The integrated nylon patch thread locking technology addresses vibration-induced loosening in machinery applications, maintaining fastener security across temperature variations from -50° to 250°F. Manufactured from corrosion-resistant 18-8 stainless steel with passivated finish, this industrial-grade shoulder screw withstands harsh environments while the hex socket drive with knurled head facilitates efficient installation in confined spaces. These features combine to create a reliable fastening solution for precision equipment, robotic assemblies, and mechanical systems requiring dimensional accuracy and long-term performance stability.

Specification Summary & Compliance

This precision shoulder screw features 10-24 UNC threads with Class 3A fit for superior thread engagement, combined with a 3/8" shoulder length maintaining diameter tolerance of -0.004" to -0.002" and length tolerance of -0.005" to 0.005". Manufactured in compliance with ASME B18.3 specifications, the fastener demonstrates full conformity with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications requiring strict material compliance standards.