S-91273A645 3/8"-24 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Enhanced durability and wear resistance from the black oxide finish, reducing maintenance needs
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads
• Precise Class 2A thread fit for smooth assembly and secure fastening in critical applications
• Knurled head texture provides improved grip during manual installation and adjustments
• Fine UNF threading offers better vibration resistance and finer adjustment capabilities
• Compliance with RoHS 3 and REACH standards ensures environmental safety and regulatory acceptance

Professional Applications & Engineering Value

This 18-8 stainless steel shoulder screw is engineered to address common industrial challenges such as component misalignment and vibration-induced loosening. The black oxide finish not only enhances corrosion resistance but also reduces friction during installation. With a 3/8"-24 UNF fine thread and Class 2A fit, it provides precise positioning in machinery, pivots, and rotating assemblies, minimizing wear and extending service life. The knurled socket head allows for secure tool engagement, making it ideal for applications in automotive, aerospace, and precision equipment where reliability and repeatability are critical.

Specification Summary & Compliance

This shoulder screw features a Class 2A thread fit per UNF standards, ensuring dimensional accuracy and interchangeability. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for global markets. Manufactured to maintain tight tolerances on shoulder diameter and length, it meets industry requirements for precision fastening in demanding environments.