S-90340A121 5/16"-18 x 1 1/4" 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 environments and reducing maintenance costs.
- Exceptional thread engagement and reliability due to Class 3A thread fit, minimizing the risk of cross-threading and assembly failures.
- High tensile strength of 70,000 psi ensures the fastener can withstand significant loads and vibrations in demanding applications.
- Enhanced durability and wear resistance provided by Rockwell B84 hardness, extending the screw's service life.
- Secure and efficient installation with a 1/4" square drive and high-profile socket head, allowing for high torque application and reduced tool slippage.
- Versatile coarse UNC thread design enables quicker assembly and better performance in materials where fine threads might strip.
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets international standards for industrial components.
Professional Applications & Engineering Value
This Socket Head Cap Screw is engineered to address critical challenges in industrial settings, such as vibration loosening and corrosion-induced failure. Made from 18-8 Stainless Steel, it offers excellent resistance to rust and chemical exposure, making it suitable for machinery, automotive assemblies, and outdoor equipment. The Class 3A thread fit and coarse UNC threads provide a precise, secure connection that withstands high stress and dynamic loads, reducing downtime and maintenance. Its fully threaded design ensures maximum grip across the entire length, while the high-profile socket head allows for easy access in confined spaces, enhancing assembly efficiency and reliability in demanding engineering applications.
Specification Summary & Compliance
This screw adheres to UNC thread standards with a Class 3A precision fit for tight tolerances and reliable performance. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances. Manufactured in the inch system, it features a 5/16"-18 thread size, 1-1/4" length, and is fully threaded for consistent application across various industrial uses.
