S-97345A127 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction
• Exceptional mechanical strength with 70,000 psi tensile strength and 35,000 psi shear strength for reliable performance under load
• Precision alignment capability with a long 1-1/8" shoulder that maintains accurate component positioning
• Enhanced grip and torque application through the knurled head and 3/32" hex socket drive design
• Reliable thread engagement with Class 3A UNC coarse threads ensuring secure fastening in industrial applications
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe industrial use
• Optimized for demanding applications combining high hardness (Rockwell B79) with precise shoulder diameter tolerances

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw delivers exceptional engineering value in precision assembly applications where corrosion resistance and mechanical strength are critical. The 8-32 UNC Class 3A thread configuration provides superior thread engagement in metal components, while the extended 1-1/8" shoulder length ensures precise alignment in rotating assemblies, pivoting mechanisms, and precision machinery. The knurled socket head with 3/32" hex drive allows for high-torque installation without slippage, making it ideal for industrial equipment, manufacturing fixtures, and automotive applications where vibration resistance and long-term reliability are essential. The combination of 70,000 psi tensile strength and corrosion-resistant properties solves common failure points in demanding environments.

Specification Summary & Compliance

This precision shoulder screw features 8-32 UNC Class 3A threads with coarse thread spacing, maintaining tight tolerances for shoulder diameter (-0.004" to -0.002") and shoulder length (-0.005" to 0.005"). Manufactured to exacting standards with Rockwell B79 hardness and 70,000 psi tensile strength, the fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial sectors while meeting rigorous quality and performance requirements.