S-8077A447 10-24 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and chemical exposure.
• Enhanced durability and wear resistance from the black oxide finish, providing a protective layer against abrasion and galling.
• High-strength performance with 70,000 psi tensile strength and 35,000 psi minimum shear strength, ensuring reliability under heavy loads.
• Precise and secure fastening with Class 3A thread fit and UNC coarse threading, offering excellent engagement and vibration resistance.
• Easy installation and removal using a hex drive (1/8") and knurled head for improved grip and torque application.
• Accurate alignment and spacing with a precisely machined shoulder diameter of 1/4" and tight tolerances for consistent assembly.
• 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 common industrial challenges, such as component misalignment and fastener failure in high-stress environments. The black oxide finish not only enhances corrosion resistance but also reduces friction during installation, preventing seizing in repetitive assembly tasks. With its UNC coarse thread and Class 3A fit, it ensures quick, secure fastening in machinery, automotive, and aerospace applications where vibration resistance is critical. The knurled head and hex drive design facilitate easy handling with standard tools, reducing installation time and improving workflow efficiency. Ideal for use in pivots, spacers, and rotating assemblies, this screw provides reliable performance in demanding conditions, supported by its high tensile strength and precise shoulder dimensions.

Specification Summary & Compliance

This shoulder screw adheres to strict dimensional tolerances, including a shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005", ensuring consistent fit and function. It meets ASME B18.3 specifications for dimensional accuracy and thread standards, with a Class 3A thread fit for superior engagement. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for industrial use without hazardous substances.