S-90337A443 10-32 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 environments and long-term reliability.
- High mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications.
- Precise alignment and smooth rotation ensured by the precisely machined 1-1/2" shoulder with minimal diameter tolerance.
- Easy installation in tight spaces with the low-profile socket head and 1/8" hex drive for efficient assembly.
- Reliable, fine-thread engagement with the 10-32 UNF thread and Class 2A fit, minimizing loosening under vibration.
- Environmental and regulatory compliance meeting RoHS 3 and REACH standards for safe, sustainable use.
- Durable, smooth head texture reducing wear on mating surfaces and simplifying maintenance.
Professional Applications & Engineering Value
This precision shoulder screw is engineered to address common industrial challenges such as misalignment, corrosion, and component wear. The 18-8 Stainless Steel material provides excellent resistance to rust and chemicals, making it suitable for machinery, automotive, and electronics assemblies exposed to moisture or corrosive agents. The low profile socket head allows for compact designs and easy access with standard hex tools, while the fine UNF thread and Class 2A fit ensure secure fastening in high-vibration environments. The precisely toleranced shoulder acts as a pivot or spacer, reducing friction and extending the life of moving parts in applications like rotating shafts, bearings, and linkages.
Specification Summary & Compliance
This shoulder screw features a 10-32 UNF fine thread with Class 2A thread fit and a shoulder diameter of 1/4" with tight tolerance for precise assembly. Manufactured to inch system standards, it includes a 1/4" thread length and 1-1/2" shoulder length. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets current environmental and safety requirements for industrial use.
