S-94035A539 10-32 MS51576-21, NASM51576 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments.
• Precise alignment and reduced wear due to the smooth shoulder with tight diameter tolerance (-0.001" to 0") and length tolerance (0" to 0.002").
• High strength and durability with Rockwell B55 hardness and 70,000 psi tensile strength for reliable performance under load.
• Secure and efficient installation using the 1/8" hex socket drive, preventing cam-out and ensuring consistent torque application.
• Accurate thread engagement with Class 2A fit and 10-32 UNF fine thread, minimizing loosening in vibrating applications.
• Broad regulatory compliance meeting MS51576-21, RoHS 3, and REACH standards for safe, global industrial use.
• Versatile right-hand fine thread design enabling easy assembly and disassembly in precision machinery and equipment.

Professional Applications & Engineering Value

This precision shoulder screw is engineered to address common industrial challenges such as misalignment, component wear, and corrosion in demanding applications. The 18-8 stainless steel material, combined with a passivated finish, provides excellent resistance to rust and chemicals, extending service life in environments like automotive assemblies, aerospace components, and medical devices. The 5/8" shoulder length with precise tolerances ensures accurate positioning of moving parts, reducing friction and maintenance needs. Its 10-32 UNF fine thread and Class 2A fit offer reliable fastening in high-vibration settings, while the hex socket drive allows for easy installation in confined spaces. Ideal for use in industrial shoulder bolts applications, this screw enhances operational efficiency and reduces downtime.

Specification Summary & Compliance

This shoulder screw adheres to strict dimensional standards, including a Class 2A thread fit for consistent engagement and tight shoulder tolerances (diameter: -0.001" to 0"; length: 0" to 0.002"). It conforms to MS51576-21 specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industrial reliability.