S-8077A436 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 extended service life.
• Enhanced durability and wear resistance from the black oxide finish, which also provides a sleek, non-reflective appearance.
• High-strength performance with a tensile strength of 70,000 psi and a minimum shear strength of 35,000 psi for reliable load-bearing in demanding applications.
• Precise and secure thread engagement with a Class 3A thread fit, ensuring tight tolerances and reduced risk of loosening under vibration.
• Easy installation and removal using a standard hex drive (1/8"), combined with a knurled head for improved grip during manual handling.
• Accurate component alignment provided by the 1-3/4" shoulder length with tight tolerances, minimizing misalignment in assemblies.
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring quality and environmental safety for global supply chains.

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address common challenges in precision machinery, automation systems, and heavy-duty equipment. The UNC coarse thread and Class 3A thread fit provide excellent holding power and resistance to vibrational loosening, critical in dynamic industrial environments. The black oxide finish not only enhances corrosion resistance but also reduces galling, extending the component's lifespan in high-stress applications. With a robust 1-3/4" shoulder length and precise diameter tolerances, it ensures accurate alignment of moving parts such as gears, pulleys, and linkages, reducing wear and maintenance downtime. Ideal for use in manufacturing, automotive, and aerospace sectors, this screw delivers reliable performance where high tensile strength and environmental compliance are paramount.

Specification Summary & Compliance

This shoulder screw features a 10-24 UNC thread with Class 3A thread fit for precise engagement, and a shoulder diameter tolerance of -0.004" to -0.002" and length tolerance of -0.005" to 0.005" to ensure consistent performance. It is manufactured in compliance with ASME B18.3 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, guaranteeing safety and reliability for industrial use.