S-8077A228 8-32 Shoulder Screws
Shoulder Screws
Image may differ from product. See technical specification for details.
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, ideal for harsh environments and extended service life.
- Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable, high-load fastening.
- Precise Class 3A thread fit ensures tight tolerances and secure mating, reducing the risk of loosening in vibrating applications.
- Enhanced grip and handling from the knurled head texture, allowing for easier manual installation and adjustment.
- Durable Black Oxide finish provides added wear resistance and a reduction in light glare for sensitive assemblies.
- Broad regulatory compliance with RoHS 3 and REACH, making it suitable for global markets and environmentally conscious projects.
- Versatile hex drive design with a 3/32" drive size for standard tool compatibility and efficient installation in confined spaces.
Professional Applications & Engineering Value
This 8-32 UNC thread shoulder screw is engineered to address common industrial challenges such as component misalignment and vibration-induced failures. The 316 Stainless Steel material provides excellent resistance to corrosion from chemicals, saltwater, and outdoor exposure, making it ideal for marine, chemical processing, and food machinery applications. The Black Oxide finish not only enhances durability but also minimizes galling and seizing during assembly. With a Class 3A thread fit and coarse thread spacing, it ensures quick assembly and reliable performance in high-stress environments, while the shoulder diameter and length provide precise locating and pivoting functions in assemblies like linkages, bearings, and rotating mechanisms, reducing wear and maintenance needs.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 3A fit for high precision. Key dimensional tolerances include a shoulder diameter of 7/32" (tolerance: -0.004" to -0.002") and shoulder length of 7/32" (tolerance: -0.005" to 0.005"). It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for use in regulated industries.
