S-8077A435 10-24 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 316 Stainless Steel construction and Black Oxide finish, ideal for harsh industrial environments
• Precise component alignment with a 1/4" shoulder diameter and 1-1/4" shoulder length, ensuring stable mounting in assemblies
• High-strength performance offering 70,000 psi tensile and 35,000 psi shear strength for reliable, heavy-duty applications
• Secure, non-slip installation thanks to the knurled socket head and hex drive design for easy torque application
• Accurate thread engagement with Class 3A UNC coarse threads, providing superior fit and vibration resistance
• Long-term durability backed by Rockwell B79 hardness and compliance with ASME B18.3 standards
• Environmentally responsible manufacturing meeting RoHS and REACH regulations for safe, sustainable use

Professional Applications & Engineering Value

This 10-24 UNC thread shoulder screw is engineered to address critical challenges in precision machinery, automation systems, and industrial equipment. The 316 Stainless Steel material, combined with a Black Oxide finish, provides superior resistance to corrosion, chemicals, and moisture, making it ideal for demanding environments like marine, chemical processing, and outdoor applications. The socket head with knurled texture ensures secure grip during installation, reducing the risk of tool slippage and damage. With a 1/4" shoulder diameter and 1-1/4" shoulder length, it offers exact alignment for rotating parts, bearings, and linkages, minimizing wear and maintaining operational accuracy. This design is particularly valuable in assembly lines where consistent thread fit and high shear strength prevent failures under dynamic loads, enhancing overall system reliability and reducing maintenance downtime.

Specification Summary & Compliance

This shoulder screw features precise dimensional tolerances, including a Class 3A thread fit for tight, reliable fastening, and shoulder dimensions with tolerances of -0.004" to -0.002" for diameter and -0.005" to 0.005" for length. It adheres to UNC thread standards and is manufactured in compliance with ASME B18.3 specifications. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safety and sustainability in industrial use.