S-93691A190 8-32 MS51576-9, NASM51576 Shoulder Screws
Shoulder Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 Stainless Steel and passivated finish, ideal for harsh or humid industrial environments.
- Precise component alignment due to the controlled shoulder diameter and length tolerances, reducing assembly errors.
- High-strength performance with 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing in demanding applications.
- Secure, tamper-resistant fastening enabled by the hex socket drive, providing a clean profile and high torque transmission.
- Consistent thread engagement with UNC coarse threads and Class 2A fit, ensuring easy assembly and vibration resistance.
- Compliance with stringent industry standards including MS51576-9, RoHS 3, and REACH, guaranteeing safety and environmental responsibility.
- Durable, long-lasting service life from the combination of material properties and surface treatment, minimizing maintenance needs.
Professional Applications & Engineering Value
This 8-32 UNC shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. The 18-8 Stainless Steel construction, enhanced by a passivated finish, provides excellent resistance to corrosion and wear, making it suitable for machinery, electronics, and automotive components exposed to demanding conditions. The 3/16" shoulder length with precise tolerances ensures accurate positioning of parts like bearings, gears, or pulleys, reducing misalignment and wear. The hex drive design allows for high-torque installation in confined spaces, while the coarse thread spacing and Class 2A thread fit facilitate quick, reliable fastening that withstands vibrations. Ideal for applications requiring repeatable precision and strength, this screw delivers consistent performance in industrial shoulder screw uses, from manufacturing jigs to robotic arms.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. It meets MS51576-9 (referencing NASM51576) specifications, ensuring manufacturing quality. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming it is free of hazardous substances and safe for various industrial and international markets.
