S-8077A368 8-32 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 and Black Oxide finish, ideal for harsh industrial environments
- Exceptional mechanical strength delivering 70,000 psi tensile and 35,000 psi shear strength for reliable load-bearing applications
- Precise Class 3A thread fit ensuring secure fastening with minimal backlash in precision assemblies
- Enhanced grip and torque application through knurled head texture and standard hex socket drive
- Optimized shoulder dimensions with tight tolerances for accurate component alignment and spacing
- Broad regulatory compliance meeting ASME B18.3 standards while being RoHS 3 and REACH compliant
- Consistent performance with Rockwell B79 hardness maintaining dimensional stability under stress
Professional Applications & Engineering Value
Engineered for precision mounting applications, these 316 Stainless Steel shoulder screws solve critical alignment challenges in industrial machinery, automation systems, and precision instruments. The Black Oxide finish enhances corrosion resistance while the UNC coarse threads provide rapid assembly in high-vibration environments. The knurled socket head ensures positive torque transmission during installation, preventing tool slippage in confined spaces. With controlled shoulder diameter and length tolerances, these components maintain precise component positioning while the Class 3A thread fit guarantees consistent clamping force in demanding applications requiring repeated disassembly and reassembly.
Specification Summary & Compliance
This shoulder screw maintains Class 3A thread fit per UNC standards with shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005". Manufactured to ASME B18.3 specifications with full compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The 8-32 UNC coarse thread configuration ensures compatibility with standard industrial components while the Rockwell B79 hardness provides consistent performance across temperature variations.
