S-99154A301 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, ideal for harsh industrial environments
- Enhanced space-saving design thanks to the low-profile socket head, perfect for compact assemblies
- Reliable load-bearing capability with a tensile strength of 70,000 psi for demanding applications
- Consistent thread engagement ensured by Class 2A thread fit, reducing assembly errors
- Precise component alignment through the accurately machined shoulder with minimal diameter tolerance
- Long-term durability supported by Rockwell B55 hardness, resisting wear and deformation
- Global compliance assurance with RoHS 3 and REACH standards, meeting international regulatory requirements
Professional Applications & Engineering Value
This 2-56 UNC shoulder screw is engineered to address critical alignment and space constraints in precision machinery, electronics, and automated systems. The low-profile socket head minimizes protrusion, allowing seamless integration in tight spaces without compromising drive integrity. Made from 18-8 stainless steel, it offers excellent corrosion resistance, essential for environments exposed to moisture or chemicals. The precise shoulder fit ensures accurate positioning of components like gears or bearings, reducing vibration and misalignment issues. With a coarse UNC thread and right-hand direction, it facilitates quick installation and high clamping force, making it a reliable choice for assembly lines and maintenance operations where efficiency and durability are paramount.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent tolerance. Dimensions include a head diameter of 3/16", thread length of 1/8", and shoulder diameter of 3/32" with tight tolerances (e.g., shoulder diameter: -0.001" to 0"). It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industrial reliability.
