S-90337A356 2-56 Shoulder Screws
Shoulder Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments
- Precise component alignment enabled by the 7/8" shoulder with tight diameter and length tolerances
- High-strength performance with 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
- Space-saving low profile design with socket head for applications with limited clearance
- Reliable thread engagement through Class 2A UNC coarse threads ensuring consistent fastening
- Secure installation with 5/64" hex drive preventing cam-out during torque application
- Environmental compliance meeting RoHS 3 and REACH regulations for global manufacturing requirements
Professional Applications & Engineering Value
This precision shoulder screw addresses critical alignment challenges in machinery assembly, where exact component positioning is paramount. The 18-8 Stainless Steel composition provides excellent corrosion resistance in manufacturing environments exposed to moisture, chemicals, or outdoor conditions. The 7/8" shoulder length with precise tolerances ensures accurate spacing between components, eliminating misalignment issues in rotating assemblies, pivoting mechanisms, and precision instruments. The low profile socket head design allows for compact installations where standard head heights would interfere with adjacent components. Combined with the 2-56 UNC coarse thread and Class 2A fit, this shoulder screw delivers reliable performance in automated equipment, electronic enclosures, and precision mechanical systems where vibration resistance and dimensional stability are critical.
Specification Summary & Compliance
This shoulder screw features Class 2A thread fit per UNC standards with precise shoulder diameter tolerance of -0.001" to 0" and shoulder length tolerance of 0" to 0.002". Manufactured from 18-8 Stainless Steel with Rockwell B55 hardness and 70,000 psi tensile strength. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental regulations for restricted substances.
