S-90337A152 2-56 Shoulder Screws

Key Features & Benefits at a Glance

• Corrosion-resistant performance with 18-8 stainless steel and passivated finish for extended service life in harsh environments.
• Precise component alignment ensured by the accurate 3/32" shoulder diameter and length with tight tolerances for reduced assembly errors.
• High-strength reliability delivering 70,000 psi tensile strength and Rockwell B55 hardness to withstand demanding mechanical loads.
• Space-saving low-profile design with socket head and 5/64" hex drive for easy installation in confined spaces.
• Secure thread engagement using UNC coarse threads with Class 2A fit for consistent fastening and vibration resistance.
• Regulatory compliance meeting RoHS 3 and REACH standards for safe use in regulated industrial applications.
• Durable right-hand threading providing reliable fastening in standard assembly operations.

Professional Applications & Engineering Value

This 2-56 UNC shoulder screw is engineered to address critical alignment and corrosion challenges in precision assemblies. The 18-8 stainless steel construction, enhanced by a passivated finish, resists oxidation and chemical exposure, making it ideal for electronics, medical devices, and automation equipment. The low-profile socket head with a 5/64" hex drive allows for compact designs while ensuring secure torque application. Its precise shoulder dimensions (3/32" diameter and length) minimize part movement, reducing wear and maintaining accuracy in rotating components or guiding mechanisms. By integrating Class 2A thread fit and coarse UNC threads, it delivers quick assembly and reliable performance in high-vibration environments, streamlining production and maintenance processes.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 2A fit for consistent dimensional accuracy. Shoulder diameter is maintained at 3/32" with a tolerance of -0.001" to 0", while shoulder length is 3/32" with a 0" to 0.002" tolerance, ensuring precise shoulder fit. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for industrial and electronic applications without hazardous substances.