S-90298A213 8-32 ASME B18.3 Shoulder Screws
Shoulder Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance from 18-8 Stainless Steel and passivated finish, ideal for harsh industrial environments.
- Exceptional strength and durability with 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications.
- Precision alignment and smooth rotation ensured by the 3/16" shoulder with a tight diameter tolerance of ±0.001".
- Reliable, coarse-thread engagement with 8-32 UNC thread and Class 3A fit for secure fastening in various materials.
- Easy installation with standard tools using the hex socket drive, reducing assembly time and effort.
- Compliance with industry standards including ASME B18.3, ensuring consistent quality and interchangeability.
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance for safe use in regulated industries.
Professional Applications & Engineering Value
This stainless steel shoulder screw is engineered to address critical challenges in precision machinery, such as misalignment and wear in rotating assemblies. The 3/16" shoulder length and minimal diameter tolerance provide a precise bearing surface, reducing friction and extending component life in applications like automation equipment, fixturing, and pneumatic systems. Made from 18-8 Stainless Steel with a passivated finish, it resists corrosion in humid or chemical-exposed environments, while the 8-32 UNC coarse thread and Class 3A fit ensure strong, vibration-resistant connections. Its hex socket drive allows for efficient installation in confined spaces, making it a reliable choice for high-performance industrial applications requiring durability and exact tolerances.
Specification Summary & Compliance
This shoulder screw features a Class 3A thread fit for precise engagement, with a shoulder diameter tolerance of -0.001" to 0.001" and shoulder length tolerance of -0.005" to 0.005". It conforms to ASME B18.3 standards for dimensional accuracy and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity.
