S-90298A209 6-32 ASME B18.3 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 construction and passivated finish, ideal for harsh industrial environments.
- High tensile strength of 70,000 psi ensures reliable load-bearing capacity and long-term joint integrity.
- Precision Class 3A thread fit guarantees smooth assembly and secure fastening with minimal play.
- Hex socket drive design allows for easy installation with standard tools, reducing assembly time and risk of stripping.
- Accurate shoulder dimensions with tight tolerances provide stable alignment for rotating components like gears and pulleys.
- Compliance with ASME B18.3 standards ensures consistent quality and interchangeability in professional applications.
- Rockwell B55 hardness offers excellent durability and resistance to wear under repeated use.
Professional Applications & Engineering Value
This 6-32 UNC shoulder screw is engineered to address critical alignment and durability challenges in machinery assembly. Made from 18-8 stainless steel with a passivated finish, it resists corrosion in moist or chemical-exposed settings, extending service life. The socket head and hex drive facilitate secure tightening in confined spaces, while the precisely machined shoulder acts as a pivot or spacer for components like bearings and linkages. Its coarse UNC thread and Class 3A fit ensure quick, reliable engagement, reducing installation errors in high-volume production lines. Ideal for automotive, aerospace, and industrial equipment, this screw enhances performance by maintaining alignment under dynamic loads.
Specification Summary & Compliance
This shoulder screw adheres to ASME B18.3 specifications, with a Class 3A thread fit for precise UNC threading and shoulder dimensions (e.g., diameter tolerance of -0.001" to 0.001"). It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and material reliability. Manufactured to inch system standards, it guarantees consistent performance in regulated industries.
