S-90696A203 5/16"-24 x 4 1/2" ASME B18.3 18-8 Stainless Steel Socket Head Screws
18-8 Stainless Steel Socket Head 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
- Exceptional corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and long-term reliability.
- High tensile strength of 70,000 psi ensures secure, vibration-resistant fastening in demanding applications.
- Precision Class 3A fine threads provide superior fit and reduced risk of cross-threading during assembly.
- Rockwell B70 hardness offers excellent wear resistance and durability under repeated use.
- 1/4" hex drive socket head allows for high-torque installation and easy access in confined spaces.
- Partially threaded design enables precise clamping force control and secure joint integrity.
- Compliance with ASME B18.3, RoHS 3, and REACH guarantees industry-standard quality and environmental safety.
Professional Applications & Engineering Value
This 18-8 Stainless Steel Socket Head Cap Screw is engineered to address critical challenges in precision machinery, automotive assemblies, and industrial equipment. The Class 3A UNF fine thread ensures tight tolerances and reliable performance in high-vibration environments, minimizing loosening risks. Its corrosion-resistant material withstands exposure to moisture, chemicals, and extreme temperatures, making it suitable for outdoor, marine, or chemical processing applications. The combination of 70,000 psi tensile strength and Rockwell B70 hardness provides robust clamping force and durability, reducing maintenance needs and downtime. The 1/4" hex drive facilitates efficient installation with standard tools, enhancing assembly speed in automated or manual production lines.
Specification Summary & Compliance
This screw features a 5/16"-24 UNF fine thread with Class 3A fit for precise engagement, a 4-1/2" length with partial threading, and a 1/4" hex drive in a standard socket head profile. It is manufactured in accordance with ASME B18.3 specifications and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safety and consistency for industrial use.
