S-90841A210 4-40 x 1" ASME B18.3 High-Vacuum Cleaned-and-Bagged Vented Socket Head Screws
High-Vacuum Cleaned-and-Bagged Vented Socket Head 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 with 18-8 stainless steel construction, ideal for harsh industrial environments and extended service life.
- High tensile strength of 70,000 psi ensures reliable fastening under significant mechanical stress, reducing the risk of failure.
- Class 3A thread fit provides precise, tight tolerances for secure assemblies and improved vibration resistance.
- Vented design with 0.036" diameter prevents pressure buildup, making it perfect for high-vacuum and sealed applications.
- Hex socket drive (3/32") allows for high torque application and easy installation in confined spaces.
- Full threading and coarse UNC thread enable quick assembly and strong holding power in a variety of materials.
- Compliance with ASME B18.3, RoHS 3, and REACH guarantees quality, safety, and environmental standards are met for global supply chain compatibility.
Professional Applications & Engineering Value
This 18-8 stainless steel socket head cap screw is engineered to address critical challenges in precision assembly and high-vacuum systems. Its high vacuum rating and vented feature eliminate trapped air and pressure differentials, preventing leaks in sensitive equipment like semiconductor manufacturing tools, analytical instruments, and aerospace components. The UNC coarse thread and Class 3A fit ensure rapid, secure fastening with minimal cross-threading risk, while the Rockwell B70 hardness and 70,000 psi tensile strength provide durability against mechanical loads and corrosion. Ideal for industrial fasteners in robotics, medical devices, and automotive systems, this screw enhances reliability and reduces maintenance in demanding applications.
Specification Summary & Compliance
This product features a 4-40 UNC thread with Class 3A thread fit for high precision and consistent performance. It meets ASME B18.3 specifications for dimensional accuracy and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for international markets.
