S-93712A800 1/2"-20 x 3" Partially Threaded Studs with Cotter Pin

Key Features & Benefits at a Glance

• Corrosion-resistant 18-8 Stainless Steel construction ensures long-term durability in harsh environments, reducing replacement costs.
• Class 2A thread fit with UNF fine threading provides precise, secure engagement and vibration resistance in high-stress assemblies.
• Integrated hairpin cotter pin offers quick, reliable locking to prevent unintended loosening in dynamic applications.
• Rockwell B89 hardness delivers excellent wear resistance and maintains thread integrity under repeated use.
• RoHS 3 and REACH compliance guarantees environmental safety and regulatory adherence for global supply chains.
• Partially threaded design with 2" thread length allows flexible fastening while maintaining a smooth shaft for alignment.
• Precision shaft diameter tolerance of ±0.005" ensures consistent fit and reduces installation errors.

Professional Applications & Engineering Value

This 1/2"-20 UNF partially threaded stud with a hairpin cotter pin is engineered to address common industrial challenges like vibration-induced loosening and corrosion. The 18-8 Stainless Steel material resists rust and chemical exposure, making it ideal for machinery, automotive, and marine applications. Its Class 2A thread fit and fine UNF threading provide superior grip in precision assemblies, while the cotter pin secures components without additional tools. This combination enhances safety and reduces maintenance in high-stress environments, ensuring reliable performance where failure is not an option.

Specification Summary & Compliance

This stud adheres to UNF thread standards with a Class 2A external thread fit for precise tolerances. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances. Manufacturing follows strict dimensional controls, including a shaft diameter tolerance of -0.005" to 0.005" and consistent threading, supporting use in regulated industries.