S-97345A397 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
- Precise component alignment through the 1/4" shoulder diameter with tight tolerances, ensuring accurate assembly and reduced wear
- High-strength performance offering 70,000 psi tensile and 35,000 psi shear strength for demanding mechanical applications
- Secure, non-slip installation with the knurled socket head and 1/8" hex drive, providing excellent grip and torque transmission
- Reliable thread engagement due to the Class 3A fit and 10-32 UNF fine thread, minimizing loosening under vibration
- Long-term durability supported by Rockwell B79 hardness, maintaining integrity in high-stress conditions
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and regulatory adherence
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in industrial settings, such as misalignment and corrosion. The 10-32 UNF fine thread and Class 3A fit provide exceptional precision, reducing the risk of thread stripping and ensuring stable connections in vibrating machinery. Its knurled socket head with a 1/8" hex drive allows for easy, secure installation in tight spaces, while the 1/4" shoulder diameter acts as a precise pivot or spacer in assemblies like rotating shafts, bearings, and linkages. Ideal for applications in industrial equipment, automotive systems, and marine environments, it delivers reliable performance and extended service life, minimizing maintenance needs.
Specification Summary & Compliance
The screw features a Class 3A thread fit with precise dimensions, including a shoulder diameter tolerance of -0.004" to -0.002" and length tolerance of -0.005" to 0.005", ensuring high accuracy. It conforms to ASME B18.3 standards for consistent quality and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and material restrictions adherence.
