S-90340A123 5/16"-18 x 1 3/4" Socket Head Screws for Square-Drive Wrenches
Socket Head Screws for Square-Drive Wrenches
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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, ideal for harsh industrial environments and extended service life.
- Exceptional mechanical strength with a 70,000 psi tensile strength and Rockwell B84 hardness, ensuring reliable performance under high-stress conditions.
- Precise and secure fastening due to the Class 3A thread fit, minimizing the risk of loosening in critical assemblies.
- Optimized for high-torque applications featuring a high-profile socket head and 1/4" square drive for superior grip and reduced cam-out.
- Versatile partial threading allows for a non-threaded shank section, providing enhanced shear strength and precise clamping control.
- Broad compatibility with standard 5/16"-18 UNC coarse threads, ensuring easy sourcing and replacement in existing designs.
- Compliance with stringent environmental regulations including RoHS 3 and REACH, making it suitable for global supply chains and sensitive applications.
Professional Applications & Engineering Value
This 18-8 Stainless Steel Socket Head Cap Screw is engineered to address common challenges in machinery, automotive, and heavy equipment assembly. Its high-strength profile and Class 3A thread fit provide a secure, vibration-resistant connection that is critical for dynamic loads. The corrosion-resistant material ensures longevity in moist or chemically aggressive environments, reducing maintenance frequency and downtime. The partially threaded design and coarse UNC thread facilitate quick installation and robust performance in high-stress joints, making it an indispensable industrial fastener for engineers seeking reliability and precision.
Specification Summary & Compliance
This fastener adheres to UNC thread standards with a precision Class 3A thread fit for consistent dimensional accuracy. It is manufactured from 18-8 Stainless Steel and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, ensuring it is free from hazardous substances and suitable for regulated industrial and commercial use.
