S-92198A640 3/8"-16 x 4" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws
18-8 Stainless Steel Hex 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
- Exceptional corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and reducing maintenance costs.
- High tensile strength of 80,000 psi ensures reliable performance under heavy loads, minimizing failure risks in critical applications.
- Rockwell B70 hardness provides excellent durability and wear resistance, extending the screw's service life.
- Coarse UNC threading with Class 2A fit allows for quick assembly and secure fastening, improving installation efficiency.
- External hex drive design offers easy tool engagement and high torque application, speeding up maintenance and repairs.
- Partial threading enables better grip and vibration resistance in specific joint configurations, enhancing stability.
- Compliance with ASME B18.2.1, RoHS 3, and REACH ensures adherence to industry standards and environmental safety, supporting global supply chain requirements.
Professional Applications & Engineering Value
This 3/8"-16 UNC hex head screw is engineered to address common industrial challenges, such as corrosion and mechanical stress in demanding settings. Made from 18-8 Stainless Steel, it resists rust and chemical exposure, making it suitable for marine, chemical processing, and outdoor equipment. The coarse thread and Class 2A thread fit provide reliable engagement in materials prone to stripping, while the partial threading design optimizes clamp load distribution. With an external hex drive, it allows for high-torque installation in confined spaces, reducing assembly time. Ideal for structural frameworks, machinery, and heavy-duty assemblies, this screw ensures long-term performance and reduces downtime in industrial applications.
Specification Summary & Compliance
This screw features precise Class 2A thread fit per UNC standards, with a thread size of 3/8"-16 and coarse spacing for consistent performance. It is manufactured in accordance with ASME B18.2.1 specifications, ensuring dimensional accuracy and reliability. Additionally, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and suitable for environmentally conscious industrial use.
