S-97345A669 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 316 stainless steel construction, ideal for harsh environments and extended service life.
- Precise alignment and smooth rotation ensured by the Class 3A thread fit and standard shoulder fit, reducing wear in assemblies.
- High mechanical strength with 70,000 psi tensile and 35,000 psi shear strength for reliable performance in demanding applications.
- Secure and easy installation using the 1/4" hex drive and knurled head, providing excellent grip and torque transmission.
- Dimensional stability and accuracy with fine UNF threads and tight shoulder tolerances, ensuring consistent fit and function.
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, guaranteeing quality and regulatory adherence.
- Versatile application suitability due to the 1/2" shoulder diameter and 1" shoulder length, accommodating various bushing and pivot needs.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, such as misalignment and component wear. The Class 3A thread fit and fine 3/8"-24 UNF thread provide exceptional dimensional accuracy, minimizing backlash in assemblies like rotating shafts, linkages, and pivots. The knurled socket head design enhances grip during installation, while the 1/2" shoulder diameter offers a stable bearing surface for bushings or spacers, reducing friction and extending equipment life. Ideal for industrial automation, medical devices, and marine equipment, its corrosion-resistant properties and high tensile strength ensure reliability in corrosive or high-stress environments, supporting long-term operational efficiency.
Specification Summary & Compliance
This shoulder screw maintains precise dimensional tolerances, including a Class 3A thread fit for superior engagement and a shoulder diameter tolerance of -0.004" to -0.002". It adheres to ASME B18.3 specifications for consistent manufacturing quality and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity.
