S-91255A626 3/8"-16 x 1 1/4" ASTM F835 Steel Button Head Hex-Drive Screws
Steel Button Head Hex-Drive 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 durability with 120,000 psi tensile strength and Rockwell C39 hardness for reliable performance in demanding industrial environments
- Superior corrosion resistance thanks to black-oxide coating that protects against rust and extends service life
- Secure installation with 7/32" hex drive design that prevents cam-out and ensures proper torque application
- Precision threading featuring Class 3A UNC coarse threads for superior fit and vibration resistance in heavy machinery
- Full threading capability allows complete engagement along the entire 1-1/4" length for maximum holding power
- Industry compliance meeting ASME B18.3 and ASTM F835 standards for guaranteed quality and interchangeability
- Environmental responsibility with RoHS 3 and REACH compliance for safe use in regulated industries
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these black-oxide alloy steel rounded head screws deliver exceptional performance where reliability is critical. The UNC coarse thread spacing combined with Class 3A thread fit ensures rapid assembly and superior vibration resistance in machinery, equipment manufacturing, and structural applications. The button-style rounded head provides a finished appearance while the hex drive design allows for high-torque installation without stripping. Perfect for automotive assemblies, industrial machinery, and construction equipment where high tensile strength and corrosion protection are essential for long-term performance in challenging environments.
Specification Summary & Compliance
This 3/8"-16 x 1-1/4" rounded head screw features precision Class 3A thread fit with UNC coarse thread spacing and full threading along the entire length. Manufactured to exacting ASME B18.3 and ASTM F835 specifications, ensuring dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for use in regulated industries and international markets.
