S-97345A417 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
- Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and extended service life
- Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance in high-stress applications
- Precise alignment and spacing enabled by the 1" shoulder with tight tolerances, reducing assembly errors and improving component fit
- High-accuracy threading with Class 3A fit and 8-32 UNC coarse thread for secure, vibration-resistant fastening
- Easy installation and removal thanks to the hex socket drive and knurled head, providing superior grip and torque application
- Compliance with industry standards including ASME B18.3, ensuring interchangeability and reliability in professional settings
- Environmentally safe manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements for hazardous substances
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in precision assemblies, such as misalignment and component wear. The 1" shoulder length with minimal tolerance provides a stable pivot or bearing surface, essential in machinery, automotive, and electronics where exact positioning is crucial. The UNC coarse thread and Class 3A fit ensure rapid assembly and high resistance to loosening under vibration, reducing maintenance needs. Made from corrosion-resistant 316 stainless steel, it performs reliably in moist or chemical-exposed environments, extending equipment lifespan and minimizing downtime in industrial applications.
Specification Summary & Compliance
This shoulder screw features precise dimensions including a shoulder diameter of 1/4" with tolerance of -0.004" to -0.002" and shoulder length of 1" with tolerance of -0.005" to 0.005". Thread specifications include 8-32 UNC coarse thread with Class 3A fit for high accuracy. It complies with ASME B18.3 standards for consistency and reliability, and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) requirements, ensuring environmental safety and regulatory adherence.
