S-90058A197 8-32 x 3/4" Tamper-Resistant Tri-Groove-Drive Steel Round Head Screws
Tamper-Resistant Tri-Groove-Drive Steel Round Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
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Key Features & Benefits at a Glance
- Enhanced corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments
- Superior torque transmission and reduced cam-out due to the Tri-Groove drive style, ensuring reliable installation
- High-strength performance with 80,000 psi tensile strength and Rockwell C28 hardness for demanding applications
- Precise thread engagement with Class 3A UNC coarse threads, providing secure fastening and vibration resistance
- Optimal grip and load distribution from the fully threaded design and high rounded head profile
- Wide compatibility with standard UNC coarse threading, simplifying replacements in various assemblies
- Durable surface protection that maintains integrity under mechanical stress and environmental exposure
Professional Applications & Engineering Value
Engineered for heavy-duty industrial and construction applications, these zinc-plated steel rounded head screws address critical challenges like vibration loosening and corrosion. The Class 3A UNC coarse threading ensures tight tolerances and rapid assembly, reducing installation time while maintaining high tensile strength (80,000 psi) under dynamic loads. The Tri-Groove drive minimizes tool slippage, enhancing worker safety and efficiency in automated or manual settings. Ideal for machinery, structural frameworks, and equipment requiring reliable, fully threaded fasteners, they deliver consistent performance where precision and durability are paramount.
Specification Summary & Compliance
This screw adheres to UNC thread standards with a Class 3A fit for precise dimensional accuracy. It features a coarse thread spacing, right-hand threading, and full threading along the 3/4" length. Manufactured from zinc-plated steel, it meets common industry requirements for mechanical properties, including hardness (Rockwell C28) and tensile strength. Compliant with RoHS and REACH regulations, it is suitable for various industrial applications without hazardous materials.
