S-94035A123 2-56 Shoulder Screws
Shoulder Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments.
- Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable, long-lasting fastening.
- Precise component alignment enabled by the 5/8" shoulder with tight diameter and length tolerances for accurate positioning.
- Easy installation and removal with a standard socket head and 5/64" hex drive, reducing assembly time and tool wear.
- Consistent thread engagement through Class 2A UNC coarse threads, ensuring secure fits and vibration resistance.
- Broad regulatory compliance meeting RoHS 3 and REACH standards, supporting global supply chain requirements.
- Versatile right-hand threading for standard applications, simplifying inventory and usage across various assemblies.
Professional Applications & Engineering Value
This 2-56 UNC shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. The 18-8 stainless steel material, combined with a passivated finish, provides excellent resistance to corrosion and wear, making it suitable for machinery, electronics, and automotive components exposed to moisture or chemicals. The 5/8" shoulder length and precise shoulder diameter ensure accurate positioning of parts like gears, pulleys, and linkages, reducing misalignment and operational failures. With a socket head design and coarse thread spacing, it allows for quick, secure fastening in high-vibration environments, enhancing assembly efficiency and product lifespan in industrial settings.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent engagement and tolerance. Dimensions include a 1/8" thread length, 3/16" head diameter, and precise shoulder specifications (diameter tolerance: -0.001" to 0"; length tolerance: 0" to 0.002"). It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for industrial use.
