S-97832A136 3/8"-24 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 18-8 Stainless Steel construction, ideal for harsh industrial environments and extended service life.
- Exceptional mechanical strength with a 70,000 psi tensile strength and Rockwell B55 hardness, ensuring reliable performance under high-stress conditions.
- Precision alignment and smooth rotation provided by the 1/2" diameter shoulder with tight tolerances, reducing wear on mating components.
- Secure, high-torque fastening enabled by the knurled socket head and 1/4" hex drive, preventing cam-out and ensuring consistent installation.
- Reliable thread engagement with the Class 3A UNF fine thread (3/8"-24), offering excellent vibration resistance and a secure fit.
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, guaranteeing quality and environmental safety for global supply chains.
- Versatile 2" shoulder length for precise spacing and pivoting in assemblies, accommodating various mechanical and structural designs.
Professional Applications & Engineering Value
This 18-8 Stainless Steel shoulder screw is engineered to address critical challenges in high-performance industrial applications, such as machinery, automation systems, and precision instruments. The Class 3A UNF fine thread and 2" shoulder length provide exact alignment and vibration-resistant fastening, minimizing component wear and maintenance downtime. The knurled socket head with a 1/4" hex drive ensures efficient torque transmission, reducing the risk of stripping during installation. Made from durable stainless steel with a 70,000 psi tensile strength, it offers long-term reliability in demanding environments, supporting robust mechanical fastening solutions for engineers and OEMs.
Specification Summary & Compliance
This shoulder screw features a Class 3A thread fit for precision, with a 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 compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and adherence to global standards.
