S-8077A124 3/4"-10 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and extending service life.
• Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance under heavy loads.
• Precise alignment and smooth rotation ensured by the standard shoulder fit and knurled head for secure grip during installation.
• Durable black oxide finish enhances wear resistance and provides a sleek, professional appearance.
• High-accuracy Class 3A thread fit with UNC coarse threads for easy assembly and secure fastening in demanding applications.
• Robust hex drive design with a 1/2" drive size allows for high-torque installation and removal without stripping.
• Full compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental responsibility.

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical challenges in industrial settings where precision, durability, and corrosion resistance are paramount. The black oxide finish not only adds an extra layer of protection against wear and oxidation but also reduces friction during assembly. Its UNC coarse threads and Class 3A thread fit provide reliable engagement in materials prone to vibration loosening, making it ideal for machinery, automotive assemblies, and conveyor systems. The knurled head ensures a firm grip for manual adjustments, while the robust shoulder diameter maintains precise component alignment, reducing wear and tear in high-stress applications. This screw delivers consistent performance in environments exposed to moisture, chemicals, and heavy mechanical loads, offering long-term reliability and reduced maintenance costs.

Specification Summary & Compliance

This shoulder screw features a 3/4"-10 UNC thread with a Class 3A thread fit for high precision, and shoulder dimensions including a 1" diameter with tight tolerances (-0.004" to -0.002") and 5 1/2" length. It is manufactured in compliance with ASME B18.3 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring it is free from hazardous substances and suitable for global industrial use.