S-92183A371 5/16"-18 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 installation security through knurled socket head design that prevents tool slippage
- Precise component alignment with consistent 1/2" shoulder diameter and tight tolerance control
- High-strength performance delivering 70,000 psi tensile strength and 35,000 psi shear capacity
- Reliable thread engagement with Class 3A UNC coarse threads for superior fastening integrity
- Easy maintenance access using standard 1/4" hex drive tools for quick assembly and disassembly
- Compliance assurance meeting RoHS 3 and REACH environmental regulations for global applications
Professional Applications & Engineering Value
This 18-8 stainless steel shoulder screw delivers exceptional engineering value in precision applications where alignment accuracy and corrosion resistance are critical. The 5/16"-18 UNC Class 3A thread with coarse spacing ensures rapid assembly while maintaining vibration resistance in dynamic environments. The knurled socket head with 1/4" hex drive provides positive tool engagement, eliminating cam-out during high-torque installation. The precisely machined 1/2" shoulder diameter serves as a reliable locating surface for rotating components, bearings, and linkages in industrial machinery, automation systems, and precision equipment. The combination of Rockwell B55 hardness and 70,000 psi tensile strength ensures long-term reliability under mechanical stress while the stainless steel construction resists corrosion in demanding manufacturing environments.
Specification Summary & Compliance
This precision shoulder screw features 5/16"-18 UNC Class 3A threads with tight tolerance control, including shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.002" to 0.002". Manufactured to exacting standards with right-hand thread direction and coarse thread spacing for optimal performance. The component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial applications worldwide.
