S-8077A427 10-24 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure
• Enhanced durability and wear resistance from the black oxide finish, providing long-lasting performance and reduced maintenance
• Precise component alignment with a standard shoulder fit and controlled diameter tolerance for reliable assembly
• High-strength performance offering 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
• Secure, non-slip installation facilitated by the knurled socket head and 1/8" hex drive for improved torque application
• Reliable thread engagement with UNC 10-24 coarse threading and Class 3A fit, ensuring consistent fastening in various materials
• Compliance with major industry standards including ASME B18.3, RoHS 3, and REACH for guaranteed quality and safety

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical alignment and corrosion challenges in industrial applications. The black oxide finish not only enhances corrosion resistance but also reduces galling during installation, extending service life in machinery, pivots, and rotating assemblies. Its UNC coarse threading and Class 3A thread fit provide superior holding power in softer materials and high-vibration environments, preventing loosening. The precision-machined shoulder ensures exact component spacing, reducing wear on moving parts and minimizing assembly errors. Ideal for use in precision equipment, automotive fixtures, and electronic enclosures, this screw delivers consistent performance where dimensional accuracy and material integrity are paramount.

Specification Summary & Compliance

This shoulder screw features a 10-24 UNC coarse thread with Class 3A fit for precise thread engagement. Shoulder diameter tolerance is maintained between -0.004" to -0.002", and shoulder length tolerance from -0.005" to 0.005" to ensure accurate alignment. Manufactured in compliance with ASME B18.3 specifications, it also meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements, ensuring environmental safety and material reliability for global industrial use.