S-93691A290 10-32 MS51576-18, 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 and aerospace environments.
• High-strength performance with 70,000 psi tensile strength and Rockwell B55 hardness, ensuring reliable load-bearing capacity and durability.
• Precise alignment and location due to the smooth, precisely fitted shoulder with controlled diameter and length tolerances.
• Secure and efficient installation using the 1/8" hex drive socket head, providing a positive grip and reducing the risk of tool slippage.
• Reliable thread engagement with a 10-32 UNF fine thread and Class 2A fit, offering excellent vibration resistance in dynamic applications.
• Full regulatory compliance with MS51576/NASM51576 standards, RoHS 3, and REACH, ensuring material safety and quality assurance.
• Versatile right-hand thread design for standard assembly processes, facilitating quick and easy integration into various mechanical systems.

Professional Applications & Engineering Value

This precision shoulder screw is engineered to address critical alignment and fastening challenges in demanding sectors. The 18-8 stainless steel material, enhanced by a passivated finish, provides excellent resistance to corrosion and oxidation, making it suitable for aerospace and industrial applications where environmental factors are a concern. The 10-32 UNF fine thread and Class 2A fit ensure tight, secure connections that resist loosening under vibration, while the precisely machined shoulder acts as a datum for accurate component positioning. The 1/8" hex drive allows for high-torque installation without damaging the head, streamlining assembly in confined spaces. This combination of features solves common issues like misalignment, part wear, and fastener failure, delivering long-term reliability and reduced maintenance.

Specification Summary & Compliance

The screw maintains Class 2A thread fit per UNF standards and features a precise shoulder fit with diameter tolerance of -0.001" to 0" and length tolerance of 0" to 0.002". It is manufactured in accordance with MS51576/NASM51576 specifications and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and adherence to international quality benchmarks.