S-8077A449 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 and Black Oxide finish, ideal for harsh environments and extended service life
- Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance in high-stress applications
- Precision thread fit with Class 3A UNC coarse threads ensuring secure, vibration-resistant fastening and easy assembly
- Enhanced grip and torque application from the knurled socket head and 1/8" hex drive, preventing tool slippage during installation
- Accurate component alignment provided by the precision-machined shoulder with tight diameter and length tolerances
- High durability backed by Rockwell B79 hardness, resisting wear and deformation under heavy loads
- Full regulatory compliance meeting ASME B18.3 standards, RoHS 3, and REACH for global industrial use and supply chain compatibility
Professional Applications & Engineering Value
This 10-24 UNC shoulder screw delivers critical engineering value in applications requiring precise alignment and robust fastening. The 316 Stainless Steel material combined with the Black Oxide finish provides excellent resistance to corrosion, chemicals, and oxidation, making it suitable for marine, chemical processing, and outdoor equipment. The Class 3A thread fit and coarse UNC threads ensure reliable engagement and resistance to loosening under vibration, common in machinery, automation systems, and assembly jigs. The knurled socket head enhances grip for high-torque installation, while the precisely toleranced shoulder maintains component alignment in rotating assemblies, pivots, and bearing mounts, reducing wear and improving operational accuracy.
Specification Summary & Compliance
This shoulder screw features a 10-24 UNC thread with Class 3A fit and a shoulder diameter of 1/4" (tolerance: -0.004" to -0.002") and length of 1/8" (tolerance: -0.005" to 0.005"). Manufactured in compliance with ASME B18.3 specifications, it is also RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to environmental and safety regulations for industrial components.
