S-8077A849 10-24 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, ideal for harsh environments and extended service life
- Enhanced durability and wear resistance from the black oxide finish, providing added protection against abrasion
- Precise and secure fastening with Class 3A thread fit, ensuring reliable engagement and reducing the risk of loosening
- High mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for demanding industrial applications
- Easy installation and removal with a 5/32" hex socket drive and knurled head for improved grip and torque application
- Accurate alignment and spacing due to the standardized shoulder diameter and length with tight tolerances
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH for safe and reliable use
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address common industrial challenges such as misalignment, corrosion, and mechanical failure. The UNC coarse thread and Class 3A fit provide excellent holding power in assemblies subject to vibration and dynamic loads, while the black oxide finish enhances surface hardness and reduces galling. The precision-machined shoulder ensures consistent spacing and rotational stability in machinery, pivots, and linkages, making it a reliable choice for precision engineering applications in automotive, aerospace, and heavy equipment sectors. Its high tensile and shear strength ensures long-term performance under stress, minimizing downtime and maintenance costs.
Specification Summary & Compliance
This shoulder screw adheres to ASME B18.3 specifications, with a Class 3A thread fit for precise UNC threading and dimensional accuracy. Shoulder diameter tolerance is -0.004" to -0.002", and shoulder length tolerance is -0.005" to 0.005", ensuring consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and material restrictions are met for industrial use.
