S-97768A240 8-32 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
- Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
- Enhanced durability and wear resistance from the black oxide finish, providing long-lasting performance.
- Superior load-bearing capacity with 70,000 psi tensile strength and 35,000 psi shear strength for heavy-duty applications.
- Precise alignment and reduced wear ensured by the 1/4" shoulder diameter with tight tolerances for accurate component positioning.
- Reliable, high-precision threading with Class 3A UNC coarse threads for secure fastening and vibration resistance.
- Easy installation and removal using the hex socket drive and knurled head for improved grip and torque application.
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH for quality assurance and environmental safety.
Professional Applications & Engineering Value
This 8-32 UNC thread shoulder screw is engineered to address critical challenges in precision assemblies, such as misalignment and component wear. The 18-8 stainless steel material offers excellent strength and corrosion resistance, while the black oxide finish enhances surface durability in demanding conditions. The 1/4" shoulder diameter provides a precise pivot or bearing surface, reducing friction and ensuring accurate alignment in machinery, automotive, and aerospace applications. With its Class 3A thread fit and coarse UNC threading, it delivers secure, vibration-resistant connections, making it ideal for high-stress environments where reliability is paramount.
Specification Summary & Compliance
This shoulder screw features precise dimensions, including a shoulder diameter tolerance of -0.004" to -0.002" and length tolerance of -0.005" to 0.005", ensuring consistent performance. It adheres to ASME B18.3 specifications for dimensional accuracy and thread standards, with Class 3A thread fit for superior fastening. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and material integrity.
