S-91266A628 3/8"-16 x 1 1/2" ASTM F835 Alloy Steel Thread-Locking Hex Drive Flat Head Screws
Alloy Steel Thread-Locking Hex Drive Flat 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
- Vibration-resistant locking thanks to the Nylon Patch thread locker, preventing loosening in high-stress environments
- Exceptional tensile strength of 130,000 psi ensures reliable performance in heavy-duty industrial applications
- Superior corrosion protection from the Black-Oxide finish on Alloy Steel, enhancing durability in harsh conditions
- Precise Class 3A thread fit for secure, accurate fastening and reduced risk of cross-threading
- Wide temperature tolerance from -65° to 250°F, maintaining locking integrity across diverse operating environments
- Easy installation and removal with a standard hex drive, reducing assembly time and tool wear
- 82° countersink angle allows for a flush, low-profile fit in standard countersunk holes
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 3/8"-16 UNC flat head screws address critical challenges like vibration-induced loosening and material fatigue. The Nylon Patch thread locker provides consistent locking force without compromising the Class 3A thread fit, ensuring reliable performance in machinery, automotive assemblies, and structural frameworks. Made from black-oxide alloy steel, they offer enhanced resistance to corrosion and wear, while the coarse UNC threading facilitates quicker installation in tough materials. Their fully threaded design and high tensile strength make them ideal for applications where disassembly is infrequent but security is paramount, reducing maintenance costs and downtime.
Specification Summary & Compliance
This screw meets ASTM F835 specifications for dimensional accuracy and mechanical properties, with a Class 3A thread fit ensuring tight tolerances. It is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to environmental and safety regulations. The UNC coarse thread and 82° countersink angle conform to standard industrial requirements, providing reliable performance across various sectors.
