S-97832A129 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 reducing replacement frequency.
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads, minimizing the risk of mechanical failure.
- Precise Class 3A thread fit provides excellent engagement and vibration resistance in critical assemblies.
- Knurled head design offers enhanced grip for easier manual installation and adjustment without specialized tools.
- Fine UNF thread (3/8"-24) delivers superior holding power and finer adjustment capabilities compared to coarse threads.
- Consistent shoulder diameter and length with tight tolerances ensure accurate alignment and smooth rotation in pivoting applications.
- Compliance with ASME B18.3, RoHS 3, and REACH guarantees product reliability and environmental safety for global supply chains.
Professional Applications & Engineering Value
This 18-8 stainless steel shoulder screw is engineered to address common challenges in precision machinery, such as misalignment and wear in rotating assemblies. The 1/2" shoulder diameter and 3/8" shoulder length provide a stable bearing surface, reducing friction and extending component life in applications like pivots, gears, and linkages. The Class 3A thread fit and fine UNF thread ensure secure fastening in high-vibration environments, while the knurled socket head allows for quick maintenance. Ideal for industrial automation and precision equipment, it offers durability and compliance with key standards, minimizing downtime and maintenance costs.
Specification Summary & Compliance
This shoulder screw features a 3/8"-24 UNF fine thread with Class 3A fit for high precision, a shoulder diameter of 1/2" (tolerance: -0.004" to -0.002"), and shoulder length of 3/8" (tolerance: -0.005" to 0.005"). It meets ASME B18.3 specifications for dimensional consistency and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring safety and environmental adherence.
