S-93712A400 3/8"-24 x 2" Partially Threaded Studs with Cotter Pin

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and long-term reliability.
• Precise and secure fastening ensured by the Class 2A thread fit and 3/8"-24 UNF fine threading, reducing the risk of loosening under vibration.
• Quick and reliable locking with the integrated 2" hairpin cotter pin, providing a positive mechanical lock for safety-critical assemblies.
• Enhanced durability and strength from the Rockwell B89 hardness, offering excellent resistance to wear and deformation.
• Accurate and consistent installation due to the tight ±0.005" shaft diameter tolerance, ensuring proper fit and alignment.
• Versatile one-end threading design allows for easy assembly into a tapped hole while leaving a smooth shank for pivot or linkage applications.
• Compliance with global environmental standards including RoHS 3 and REACH, making it suitable for regulated industries and international supply chains.

Professional Applications & Engineering Value

This partially threaded stud with a hairpin cotter pin is engineered to solve critical challenges in mechanical assemblies requiring both threaded engagement and a secure, quick-release locking mechanism. The 18-8 Stainless Steel material provides excellent corrosion resistance, making it ideal for outdoor equipment, marine applications, and food processing machinery where moisture and chemicals are present. The 3/8"-24 UNF fine thread offers a tighter seal and higher tensile strength compared to coarse threads, which is crucial in high-vibration environments like automotive suspensions or agricultural machinery. The integrated 2" hairpin cotter pin ensures the stud remains locked in place, preventing accidental disassembly and enhancing operational safety. This combination of precision threading, robust material, and a reliable locking feature delivers long-term performance and reduces maintenance needs in demanding industrial applications.

Specification Summary & Compliance

This product features a 3/8"-24 UNF thread with a Class 2A thread fit, ensuring precise dimensional accuracy and interchangeability. The shaft diameter tolerance is tightly controlled at ±0.005", and the assembly includes a 0.141" diameter cotter pin hole for secure fastening. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, confirming its adherence to environmental and safety regulations for industrial use.