S-91263A587 3/8"-16 x 1 1/2" ASTM F835 Alloy Steel Hex Drive Flat Head Screws
Alloy Steel 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
- Exceptional tensile strength of 130,000 psi ensures reliable performance in demanding industrial applications
- Superior corrosion resistance with zinc plating, extending service life in harsh environments
- Precision Class 3A thread fit provides secure, vibration-resistant connections with minimal play
- 82° countersink angle enables flush mounting for clean, professional finishes
- Hex drive design (7/32") allows for high-torque installation with standard tools
- Full threading along the 1½" length ensures maximum grip and holding power
- Rockwell C39 hardness maintains structural integrity under heavy loads and repeated use
Professional Applications & Engineering Value
These 3/8"-16 UNC flat head screws are engineered to solve critical fastening challenges in industrial settings. The zinc-plated alloy steel construction provides excellent corrosion protection while maintaining the 130,000 psi tensile strength required for structural applications. The Class 3A thread fit ensures precise engagement with mating components, reducing the risk of loosening under vibration. The 82° countersink angle and flat head design create seamless surfaces in machinery, automotive assemblies, and construction projects where protrusions are unacceptable. These fully threaded screws with coarse UNC threading deliver superior pull-out resistance in metal, wood, and composite materials, making them ideal for heavy-duty fastening applications requiring both strength and precision alignment.
Specification Summary & Compliance
Manufactured to exacting standards with Class 3A thread fit and UNC coarse threading (3/8"-16) for superior engagement. These screws meet ASTM F835 specifications for mechanical properties and dimensional accuracy. The 82° countersink angle conforms to industry standards for flush mounting applications. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) ensures environmental responsibility and workplace safety. Right-hand thread direction and standard flat head profile provide compatibility with existing industrial systems and tooling.
