S-94035A224 1/4"-20 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ensuring longevity in harsh environments.
• Precise alignment and smooth rotation due to the accurately machined 2" shoulder with minimal diameter and length tolerances.
• High mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable performance under heavy loads.
• Secure and efficient installation using the 5/32" hex socket drive, preventing cam-out and enabling high torque application.
• Consistent and reliable thread engagement with Class 2A UNC coarse threads, facilitating quick assembly and reducing cross-threading risks.
• Compliance with stringent environmental standards including RoHS 3 and REACH, ensuring safety and regulatory acceptance in global markets.
• Versatile right-hand thread design suitable for a wide range of industrial machinery and equipment applications.

Professional Applications & Engineering Value

This 1/4-20 UNC shoulder screw is engineered to address critical alignment and pivot point requirements in demanding industrial settings. The 18-8 stainless steel material, enhanced by a passivated finish, provides excellent resistance to corrosion and oxidation, making it ideal for use in environments exposed to moisture, chemicals, or outdoor conditions. The precisely machined 2" shoulder length and 5/16" shoulder diameter ensure minimal radial play, allowing components like gears, levers, and bearings to rotate smoothly without misalignment. The hex socket drive allows for high-torque installation in confined spaces, while the Class 2A thread fit and coarse thread spacing ensure quick and secure fastening, reducing assembly time and improving overall equipment reliability in automation, automotive, and heavy machinery applications.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent and reliable engagement. The shoulder features precise tolerances: diameter tolerance of -0.001" to 0" and length tolerance of 0" to 0.002", ensuring exact fit and function. Manufactured from 18-8 stainless steel with a passivated finish, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming its suitability for use in regulated industries and environmentally conscious applications.