S-97042A195 5/16"-18 x 3" Partially Threaded Studs

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• High-strength performance with 70,000 psi tensile strength for reliable, durable fastening under load
• Precision thread engagement through Class 2A thread fit ensures consistent assembly and reduces cross-threading risks
• Optimized partial threading allows secure grip on one end while leaving a smooth shaft for alignment or clearance
• Coarse UNC thread profile provides quick installation and resistance to vibration loosening in demanding applications
• Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe use in regulated industries
• Right-hand threading design offers standard, intuitive installation compatible with common tools and procedures

Professional Applications & Engineering Value

This 5/16"-18 UNC partially threaded stud in 18-8 stainless steel addresses critical needs in machinery, automotive, and structural assemblies where corrosion resistance and mechanical integrity are paramount. The Class 2A thread fit guarantees precise tolerance control, minimizing play and enhancing joint reliability. With a coarse thread and 3/4" thread length, it enables rapid installation and maintains holding power in high-vibration settings. The partially threaded design allows the unthreaded shaft section to serve as a pilot or spacer, reducing component count and simplifying assembly in confined spaces. Its compliance with RoHS 3 and REACH makes it suitable for electronics, medical equipment, and other sectors requiring environmental responsibility.

Specification Summary & Compliance

This stud adheres to UNC coarse thread standards with a Class 2A thread fit for external threads, ensuring dimensional accuracy within specified tolerances. The shaft diameter is 5/16" with a tolerance of -0.005" to 0.005", and the stud features a 2 1/4" shaft length and 3" overall length. It is manufactured from 18-8 stainless steel and delivers a tensile strength of 70,000 psi. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming its suitability for global industrial and commercial use.