S-97345A191 10-32 ASME B18.3 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 316 stainless steel construction, ideal for harsh environments and chemical exposure
- Exceptional dimensional stability with Class 3A thread fit ensuring precise, reliable assembly and reduced risk of cross-threading
- High mechanical strength offering 70,000 psi tensile strength and 35,000 psi shear strength for demanding load-bearing applications
- Secure, non-slip installation with a knurled socket head and hex drive design for enhanced grip and torque application
- Accurate alignment and spacing provided by the 2-1/2" shoulder with tight tolerances for consistent component positioning
- Broad regulatory compliance meeting ASME B18.3, RoHS 3, and REACH standards for safe, reliable use in regulated industries
- Fine UNF thread design enabling superior holding power and vibration resistance in precision assemblies
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, automation systems, and industrial equipment. The 10-32 UNF fine thread with Class 3A fit ensures minimal backlash and secure fastening in applications requiring high vibration resistance, such as robotics, conveyor systems, and optical instruments. The 2-1/2" shoulder length provides exact pivot points and alignment for rotating parts, reducing wear and maintenance needs. With a knurled socket head and hex drive, it allows for easy installation in confined spaces while maintaining torque integrity. The material's inherent corrosion resistance makes it suitable for marine, chemical processing, and food-grade environments, ensuring long-term reliability and reduced downtime.
Specification Summary & Compliance
This shoulder screw adheres to Class 3A thread fit for high precision, with shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005". It conforms to ASME B18.3 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safety and sustainability in industrial applications.
