S-90311A123 6-32 Shoulder Screws

Key Features & Benefits at a Glance

• Permanent vibration resistance with nylon patch thread locker that maintains secure fastening in dynamic applications from -50° to 250°F
• Superior corrosion resistance through 316 stainless steel construction, ideal for harsh chemical and marine environments
• Precision alignment capability with 5/32" shoulder diameter providing accurate component positioning and reduced bearing wear
• Enhanced installation control featuring knurled head texture and hex socket drive for positive grip during torque application
• High-strength performance delivering 70,000 psi tensile strength and 35,000 psi shear strength for demanding mechanical applications
• Reliable thread engagement with Class 3A thread fit ensuring consistent mating and reduced assembly variability
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

This 6-32 UNC shoulder screw with nylon patch locking technology addresses critical challenges in precision assembly applications where vibration resistance and positional accuracy are paramount. The 316 stainless steel construction provides exceptional corrosion resistance for demanding environments including chemical processing, marine equipment, and food machinery. The Class 3A thread fit ensures precise engagement with mating components while the integrated shoulder provides accurate alignment for rotating parts, reducing wear and maintaining dimensional stability. The knurled socket head design allows for secure tool engagement during installation, particularly valuable in confined spaces common in industrial machinery, automation systems, and precision instruments where reliable fastening under thermal cycling conditions is essential.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 3A thread fit and UNC thread form, this shoulder screw features a 5/32" shoulder diameter with tolerance of -0.004" to -0.002" and 1/4" shoulder length with tolerance of -0.005" to 0.005". The fastener complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and material safety. With Rockwell B79 hardness and engineered thread locking performance across a broad temperature range, this component meets rigorous industrial requirements for precision mechanical assemblies.