S-8077A854 10-24 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel material and Black Oxide finish, ideal for harsh environments and extended service life.
• High-strength performance offering 70,000 psi tensile strength and 35,000 psi minimum shear strength for reliable, heavy-duty applications.
• Precise thread engagement with Class 3A thread fit and UNC coarse threads, ensuring secure fastening and reduced risk of cross-threading.
• Enhanced grip and torque application from the hex socket drive and knurled head, allowing for easy installation and removal in tight spaces.
• Accurate shoulder positioning with controlled diameter and length tolerances, providing stable alignment for components like bearings or pulleys.
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring quality, safety, and environmental responsibility.
• Durable construction with Rockwell B79 hardness, maintaining integrity under repetitive stress and mechanical loads.

Professional Applications & Engineering Value

This 10-24 UNC thread shoulder screw is engineered to address critical challenges in precision machinery and industrial assemblies. Made from 316 Stainless Steel with a Black Oxide finish, it resists corrosion from chemicals, moisture, and salt, making it suitable for marine, chemical processing, and outdoor equipment. The Class 3A thread fit and coarse UNC threads provide quick assembly and high vibration resistance, reducing downtime in automated systems. The socket head with hex drive and knurled texture ensures secure tool engagement, ideal for confined spaces in robotics, conveyor systems, or automotive fixtures. By offering a robust shoulder for accurate part alignment, it minimizes wear and misalignment in pivoting mechanisms, enhancing overall operational reliability and lifespan.

Specification Summary & Compliance

This shoulder screw features precise dimensions, including a thread size of 10-24 UNC with Class 3A thread fit, shoulder diameter of 5/16" (tolerance: -0.004" to -0.002"), and shoulder length of 5/16" (tolerance: -0.005" to 0.005"). It meets ASME B18.3 specifications for consistency and performance, and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, ensuring it is free from hazardous substances and safe for various industrial applications.