S-97832A146 5/16"-18 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
- Enhanced assembly precision with Class 3A thread fit ensuring tight, reliable connections
- High-strength performance offering 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
- Secure, non-slip handling thanks to the knurled socket head and 1/4" hex drive for easy installation
- Accurate alignment and spacing with a precisely machined 3/4" shoulder diameter and standard shoulder fit
- Durable, long-lasting use supported by Rockwell B55 hardness and compliance with ASME B18.3 standards
- Environmental and safety compliance meeting RoHS 3 and REACH regulations for global industrial use
Professional Applications & Engineering Value
This socket head shoulder screw is engineered to address critical alignment and durability challenges in industrial machinery, automation systems, and precision equipment. The 18-8 Stainless Steel material provides excellent corrosion resistance, reducing maintenance in humid or corrosive settings. With a 5/16"-18 UNC coarse thread and Class 3A thread fit, it ensures fast, secure fastening with minimal risk of loosening under vibration. The 3/4" shoulder diameter and controlled tolerances allow for precise component positioning, preventing misalignment in assemblies like rotating shafts and linkages. The knurled head and hex drive facilitate easy installation, even in tight spaces, enhancing productivity while maintaining high tensile and shear strength for heavy-duty applications.
Specification Summary & Compliance
This shoulder screw features a 5/16"-18 UNC coarse thread with Class 3A thread fit for high precision, along with a shoulder diameter of 3/4" (tolerance: -0.004" to -0.002") and shoulder length of 3/4" (tolerance: -0.005" to 0.005"). It adheres to ASME B18.3 manufacturing specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring reliability and safety in professional use.
