S-8077A364 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 thread engagement with Class 3A fit and UNC coarse threads ensuring secure fastening and vibration resistance
- Easy installation and maintenance featuring a knurled socket head with 1/8" hex drive for non-slip tool engagement
- Accurate component alignment thanks to the precision-machined 1/4" shoulder with tight diameter and length tolerances
- Long-term durability backed by Rockwell B79 hardness for wear resistance in high-cycle applications
- Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations including RoHS 3 and REACH
Professional Applications & Engineering Value
This 316 Stainless Steel shoulder screw with Black Oxide finish provides critical solutions for precision assembly challenges. The UNC 8-32 thread with Class 3A fit ensures reliable fastening in vibrating equipment, while the precisely machined shoulder maintains accurate component spacing in machinery, automation systems, and precision instruments. The combination of corrosion-resistant material and protective finish extends service life in demanding environments including marine, chemical processing, and outdoor applications. The knurled socket head with hex drive prevents tool slippage during installation, reducing assembly time and improving worker safety in industrial maintenance and production lines.
Specification Summary & Compliance
Manufactured to exacting standards with Class 3A thread fit and precision shoulder dimensions (diameter: 1/4" ±0.004", length: 1/8" ±0.005"). Thread specifications conform to UNC 8-32 coarse thread standards. Full compliance with ASME B18.3 manufacturing specifications, RoHS 3 (2015/863/EU) for hazardous substance restriction, and REACH (EC 1907/2006) regulations for chemical safety.
