S-97345A692 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 chemical and marine environments
- Precise component alignment ensured by the 1/2" shoulder diameter with tight tolerance for reduced assembly play
- High load-bearing capability with 70,000 psi tensile strength and 35,000 psi minimum shear strength for demanding applications
- Secure, vibration-resistant fastening from Class 3A UNF fine threads providing excellent clamp load retention
- Easy installation and removal with 1/4" hex drive and knurled head for improved grip during manual or tooled tightening
- Extended service life supported by Rockwell B79 hardness for wear resistance in repetitive motion assemblies
- Regulatory compliance assurance meeting ASME B18.3 standards and environmental directives (RoHS 3, REACH)
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw delivers critical performance in precision machinery, where its 1/2" shoulder diameter acts as a precise locating dowel for rotating components like gears, bearings, and linkages. The Class 3A UNF fine thread ensures minimal backlash in high-vibration environments, while the 1 3/4" shoulder length provides stable axial support for moving parts. The socket head with hex drive allows compact installation in confined spaces, and the knurled texture enhances handling during assembly. Its corrosion-resistant properties make it suitable for food processing, chemical equipment, and outdoor applications where moisture and chemicals are present, reducing maintenance frequency and downtime.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications, this shoulder screw features 3/8"-24 UNF Class 3A fine threads with precise shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005". It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material traceability for global industrial use.
