S-91979A718 5/16"-18 x 1/2" Set Screws
Set 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 for long-lasting performance in harsh industrial environments.
- Precise and secure fastening ensured by Class 3A thread fit, minimizing the risk of loosening under vibration.
- High-torque installation capability via the 5/32" hex drive, allowing for easy and firm setting with standard tools.
- Effective pressure distribution from the cup tip design, helping to prevent damage to the mating component surface.
- Enhanced functionality in specialized assemblies with the vented feature (0.078" diameter) for pressure equalization or fluid passage.
- Reliable coarse UNC threads for quick assembly and reduced cross-threading in right-hand applications.
- Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe and sustainable use.
Professional Applications & Engineering Value
This hex headless set screw is engineered for demanding applications where space is limited and a flush finish is required. Made from 18-8 stainless steel, it offers excellent resistance to rust and corrosion, making it ideal for use in machinery, automotive components, and outdoor equipment. The Class 3A thread fit and coarse UNC threads provide a tight, reliable hold that withstands vibrational forces, reducing maintenance needs. The vented design is particularly valuable in pneumatic systems or where pressure relief is necessary, preventing seal failure. Its headless and cup tip features allow for secure fastening without protruding parts, protecting adjacent components and ensuring a clean assembly look.
Specification Summary & Compliance
This set screw adheres to UNC thread standards with a size of 5/16"-18 and a Class 3A thread fit for high precision. It features a right-hand thread direction, coarse spacing, and a length of 1/2". The product is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets strict environmental and safety standards for industrial use.
