S-93691A360 10-32 MS51576-24, NASM51576 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments.
• Precise alignment and reduced wear due to the smooth, accurately machined shoulder with tight diameter and length tolerances.
• High-strength performance offering 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications.
• Reliable, fine-thread engagement with the 10-32 UNF Class 2A thread fit, ensuring secure fastening in precision assemblies.
• Easy installation and removal using a standard hex key (1/8" drive), facilitated by the socket head design.
• Compliance with stringent industry standards including MS51576-24, RoHS 3, and REACH, guaranteeing quality and safety.
• Versatile right-hand thread design suitable for a wide range of machinery and equipment requiring shoulder screws.

Professional Applications & Engineering Value

This precision 10-32 UNF shoulder screw is engineered to address critical alignment and durability challenges in industrial settings. The 18-8 stainless steel material, combined with a passivated finish, provides excellent resistance to corrosion and oxidation, extending service life in moist or chemically aggressive environments. The fine thread and Class 2A fit ensure tight, reliable fastening with minimal risk of loosening under vibration, while the precisely toleranced 1-1/4" shoulder length and 1/4" shoulder diameter allow for accurate component positioning, reducing wear and misalignment in assemblies such as rotating shafts, gears, and linkages. Its socket head with hex drive facilitates easy access in confined spaces, making it a preferred choice for OEMs and maintenance teams in aerospace, automotive, and precision machinery industries.

Specification Summary & Compliance

This shoulder screw adheres to precise dimensional standards, including a Class 2A thread fit for consistent engagement and a shoulder diameter tolerance of -0.001" to 0" with length tolerance of 0" to 0.002" for exact alignment. It conforms to MS51576-24 (NASM51576) specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability for global industrial use.