S-8077A454 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 reduces light reflection and provides a sleek appearance.
• Precise and secure assembly ensured by the Class 3A thread fit, minimizing the risk of loosening under vibration and load.
• High-strength performance with a tensile strength of 70,000 psi and shear strength of 35,000 psi, suitable for heavy-duty applications.
• Easy installation and removal with a hex socket drive and knurled head, offering excellent grip and torque transmission.
• Reliable dimensional stability from the UNC coarse threading and standard shoulder fit, ensuring consistent performance in automated systems.
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, guaranteeing safety and regulatory adherence for global supply chains.

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw with a black oxide finish is engineered to address common industrial challenges such as corrosion, high stress, and precise alignment needs. The UNC coarse thread and Class 3A fit provide reliable fastening in machinery, automotive assemblies, and precision instruments, reducing maintenance downtime. The knurled head and hex drive facilitate quick installation in tight spaces, while the high tensile and shear strength ensures integrity under dynamic loads. Ideal for applications requiring shoulder screws with consistent shoulder diameter and length tolerances, it supports smooth rotational movement and component positioning in robotics, conveyor systems, and manufacturing equipment.

Specification Summary & Compliance

This shoulder screw features a 10-24 UNC thread with Class 3A fit for precise thread engagement, and shoulder dimensions including a diameter of 1/4" (tolerance: -0.004" to -0.002") and length of 5/8" (tolerance: -0.005" to 0.005"). Manufactured to ASME B18.3 specifications, it ensures dimensional accuracy and performance reliability. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety standards for industrial use.