S-97646A316 5/16"-18 x 7/8" 18-8 Stainless Steel Serrated-Flange Hex Head Screws
18-8 Stainless Steel Serrated-Flange Hex 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
- Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments.
- High tensile strength of 100,000 psi ensures reliable performance under heavy loads and vibration.
- Flange design with serrations provides secure locking without the need for separate washers, reducing assembly time.
- Class 2A thread fit offers consistent, easy installation and removal while maintaining secure fastening.
- External hex drive allows for high-torque application with standard tools, minimizing stripping risks.
- Fully threaded coarse UNC design delivers maximum grip and holding power in various materials.
- Compliance with RoHS 3 and REACH ensures environmental safety and meets global regulatory standards.
Professional Applications & Engineering Value
This 5/16"-18 UNC hex head screw is engineered to address common industrial challenges such as corrosion, vibration loosening, and high-stress demands. The 18-8 Stainless Steel material provides excellent resistance to rust and chemical exposure, making it suitable for outdoor, marine, and chemical processing equipment. The flange with serrations enhances locking capability, preventing back-off in dynamic applications, while the coarse UNC thread ensures quick assembly and strong holding in softer materials like aluminum or plastics. With a Rockwell B100 hardness and 100,000 psi tensile strength, it delivers durability in heavy-duty machinery, automotive assemblies, and structural frameworks, reducing maintenance and replacement costs.
Specification Summary & Compliance
This screw features a Class 2A thread fit for standard UNC coarse threading, ensuring precise dimensional accuracy and interchangeability. It adheres to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming it is free from hazardous substances. Manufactured to meet industrial standards for external hex drive and fully threaded specifications, it guarantees consistent performance in demanding applications.
