S-91273A214 3/8"-16 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction for long-lasting performance in harsh environments
• Precision alignment and smooth rotation provided by the 5" shoulder with tight ±0.005" length tolerance
• Exceptional mechanical strength delivering 70,000 psi tensile strength and 35,000 psi shear strength for heavy-duty applications
• Secure installation and removal enabled by the hex socket knurled head design that prevents tool slippage
• Reliable thread engagement with Class 2A UNC coarse threads ensuring consistent fastening performance
• Enhanced durability from Rockwell B55 hardness that maintains structural integrity under repeated use
• Environmental compliance meeting RoHS 3 and REACH regulations for safe industrial use

Professional Applications & Engineering Value

This 18-8 stainless steel shoulder screw addresses critical alignment challenges in precision machinery and industrial equipment. The extended 5" shoulder length with minimal tolerance provides exact component positioning while allowing smooth rotational movement in pivot points, gear assemblies, and cam mechanisms. The 3/8"-16 UNC coarse thread configuration ensures rapid assembly and disassembly in maintenance operations, while the hex socket knurled head delivers superior torque transmission without cam-out. Manufactured from corrosion-resistant stainless steel, this shoulder screw maintains dimensional stability and mechanical properties in demanding environments including manufacturing equipment, automotive systems, and material handling applications where precision and reliability are paramount.

Specification Summary & Compliance

This precision shoulder screw features Class 2A thread fit with UNC coarse thread standards, ensuring proper clearance and engagement. The shoulder maintains tight dimensional control with diameter tolerance of -0.004" to -0.002" and length tolerance of ±0.005". Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, guaranteeing safe use across various industrial sectors while maintaining the specified mechanical properties of 70,000 psi tensile strength and 35,000 psi minimum shear strength.