S-8077A289 3/8"-16 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 in harsh environments due to 316 stainless steel construction with black oxide finish
- Precise component alignment with 8" shoulder length maintaining tight diameter tolerances for stable rotational movement
- High-strength performance with 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
- Secure installation and removal through Class 3A thread fit and knurled socket head for non-slip tool engagement
- Reliable industrial compliance meeting ASME B18.3 standards and environmental regulations (RoHS/REACH)
- Optimized drive efficiency with 1/4" hex drive socket accommodating standard industrial tools
- Durable thread engagement through 3/8"-16 UNC coarse threading resistant to vibration loosening
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw delivers critical engineering solutions where precision alignment and corrosion resistance are paramount. The 8" shoulder length with tight diameter tolerances provides exact bearing surfaces for rotating components in machinery, while the black oxide finish enhances corrosion protection in demanding environments. The Class 3A thread fit ensures secure fastening in high-vibration applications, and the knurled socket head prevents tool slippage during installation. Ideal for precision equipment, industrial machinery, and marine applications, this fastener combines the strength of 70,000 psi tensile rating with the chemical resistance of 316 stainless steel, making it suitable for aerospace, automotive, and food processing equipment where reliability and compliance with ASME B18.3 standards are essential.
Specification Summary & Compliance
Manufactured to exacting standards with Class 3A thread fit and shoulder diameter tolerance of -0.004" to -0.002". The UNC coarse thread (3/8"-16) provides optimal engagement, while the 8" shoulder length maintains precision with -0.005" to 0.005" tolerance. Compliant with ASME B18.3 specifications and environmental regulations including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring safe use across global industrial applications.
