S-94035A119 2-56 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel and passivated finish, ensuring long-term durability in harsh environments.
• High tensile strength of 70,000 psi provides reliable load-bearing capacity for demanding mechanical applications.
• Precise shoulder fit and tight tolerances (±0.002") enable accurate alignment and reduced vibration in assemblies.
• Class 2A thread fit with UNC coarse threads ensures easy installation and secure fastening in various materials.
• Hex socket drive (5/64") allows for high-torque application and flush mounting in confined spaces.
• Rockwell B55 hardness offers excellent wear resistance, maintaining thread integrity over repeated use.
• Compliance with RoHS 3 and REACH guarantees environmental safety and regulatory adherence for global supply chains.

Professional Applications & Engineering Value

This 2-56 UNC shoulder screw is engineered to address critical alignment and stability challenges in precision assemblies. The 3/8" shoulder length with minimal tolerances acts as a dependable pivot or spacer, eliminating misalignment in machinery, robotics, and electronic enclosures. Crafted from 18-8 stainless steel with a passivated finish, it resists oxidation and chemical exposure, ideal for industrial settings where moisture or contaminants are present. The coarse UNC threads and Class 2A fit facilitate quick installation while maintaining grip strength, reducing assembly time and preventing loosening under dynamic loads. Commonly used in mechanical linkages, bearing mounts, and automated systems, this screw ensures consistent performance and extends equipment lifespan by minimizing wear and maintenance needs.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent engagement. Dimensions include a shoulder diameter of 3/32" (tolerance: -0.001" to 0") and shoulder length of 3/8" (tolerance: 0" to 0.002") for precise assembly. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for regulated industries.