S-93691A380 1/4"-20 MS51576-26, NASM51576 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance thanks to 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments.
• High tensile strength of 70,000 psi and Rockwell B55 hardness provide superior load-bearing capacity and resistance to deformation under stress.
• Precise shoulder fit with minimal tolerances ensures accurate alignment and smooth rotation in assemblies, reducing wear and maintenance.
• Coarse UNC thread (1/4"-20) offers quick assembly and disassembly, ideal for applications requiring frequent adjustments.
• Socket head with 5/32" hex drive allows for easy installation in confined spaces using standard tools, enhancing efficiency.
• Compliance with MS51576-26, RoHS 3, and REACH guarantees adherence to industry standards for safety and environmental regulations.
• Durable Class 2A thread fit ensures consistent performance and reliability in high-vibration and heavy-duty machinery.

Professional Applications & Engineering Value

This precision shoulder screw is engineered to address common industrial challenges, such as misalignment and component wear in machinery. Made from 18-8 stainless steel with a passivated finish, it resists corrosion and extends service life in demanding environments like automotive assemblies, robotics, and precision equipment. The UNC coarse thread and 1/2" shoulder length provide stable pivoting and alignment, reducing friction and ensuring smooth operation. With a 70000 psi tensile strength, it supports heavy loads without failure, making it ideal for high-stress applications where durability and reliability are critical. Its socket head design simplifies maintenance, saving time and costs in B2B settings.

Specification Summary & Compliance

This shoulder screw features precise dimensions, including a Class 2A thread fit for consistent engagement and a shoulder diameter tolerance of -0.001" to 0" for accurate assembly. It meets MS51576-26 specifications and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, ensuring environmental safety and regulatory adherence. The UNC thread standard and coarse spacing facilitate reliable performance in industrial fastening applications.