S-90311A133 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 316 Stainless Steel construction, ideal for harsh chemical and marine environments
• Vibration-proof secure fastening through permanent Nylon Patch thread locker that maintains integrity from -50° to 250°F
• Precise component alignment with standard shoulder fit and controlled diameter tolerances for consistent assembly
• High-load capacity delivering 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
• Superior thread engagement with Class 3A UNC coarse threads ensuring reliable mating with components
• Enhanced grip and tool engagement through knurled head texture and hex socket drive design
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial use

Professional Applications & Engineering Value

This 316 Stainless Steel shoulder screw with permanent Nylon Patch thread locker addresses critical vibration-induced loosening in industrial machinery, automation systems, and precision equipment. The Class 3A UNC coarse thread provides superior engagement in soft materials and rapid assembly applications, while the precisely machined shoulder maintains component alignment in rotating assemblies and bearing mounts. Engineered for high tensile strength (70,000 psi) and temperature resistance (-50° to 250°F), this socket head shoulder screw delivers reliable performance in manufacturing equipment, food processing machinery, and marine applications where corrosion resistance and vibration resistance are paramount.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 3A thread fit and controlled shoulder diameter tolerance (-0.004" to -0.002"). Features UNC coarse threads (8-32) with standard shoulder fit configuration. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for environmental safety and restricted substances.