S-90337A358 2-56 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments.
• Precise alignment and smooth rotation ensured by the precisely machined shoulder with tight tolerances.
• High-strength performance with a tensile strength of 70,000 psi and Rockwell B55 hardness for reliable, durable fastening.
• Efficient torque transmission from the low-profile socket head and 5/64" hex drive, reducing the risk of stripping.
• Consistent and reliable thread engagement with a Class 2A fit and coarse UNC thread for quick assembly.
• Compliance with environmental regulations, meeting RoHS 3 and REACH standards for safe, sustainable use.
• Space-saving design with a low-profile head, perfect for applications with limited clearance.

Professional Applications & Engineering Value

This 2-56 UNC shoulder screw is engineered to address critical challenges in precision assemblies, such as in machinery, electronics, and automation systems. The 18-8 Stainless Steel material provides excellent corrosion resistance, reducing maintenance in humid or corrosive settings. Its low-profile socket head and precise shoulder diameter allow for accurate component positioning and smooth pivoting, minimizing wear and misalignment. With a coarse thread spacing and Class 2A thread fit, it ensures quick, secure fastening even in high-vibration environments, enhancing assembly efficiency and product longevity for demanding industrial applications.

Specification Summary & Compliance

This shoulder screw adheres to inch system measurements with a Class 2A thread fit for consistent dimensional accuracy. It conforms to UNC thread standards and is manufactured to precise shoulder tolerances (e.g., diameter tolerance of -0.001" to 0"). The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets strict environmental and safety requirements for industrial use.