S-91255A832 3-48 x 1" 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 corrosion resistance from the black-oxide finish, extending service life in harsh industrial environments
- Superior tensile strength (120,000 psi) ensures reliable fastening under high-stress conditions without failure
- Precise Class 3A thread fit guarantees secure engagement and vibration resistance in critical assemblies
- Rockwell C39 hardness provides excellent wear resistance and maintains thread integrity during repeated use
- 1/16" hex drive design allows for easy installation with standard tools while preventing stripping
- Fully threaded coarse UNC pattern enables faster installation and stronger holding power in various materials
- Comprehensive regulatory compliance ensures material safety and meets international quality standards
Professional Applications & Engineering Value
These black-oxide alloy steel rounded head screws with 3-48 UNC coarse threading deliver exceptional performance in demanding industrial applications. The combination of high tensile strength (120,000 psi) and Rockwell C39 hardness provides reliable fastening solutions for machinery, equipment manufacturing, and electronic enclosures where vibration resistance is critical. The fully threaded design ensures maximum grip length, while the rounded button head profile offers a low-profile finish that reduces snagging hazards. These hex drive screws with Class 3A thread fit maintain precise tolerances in automated assembly processes, reducing installation time and improving production efficiency in manufacturing environments.
Specification Summary & Compliance
Manufactured to exacting Class 3A thread fit standards with UNC coarse threading (3-48 size) and 1" length. These industrial fasteners comply with ASME B18.3 and ASTM F835 specifications, ensuring dimensional accuracy and performance reliability. The products are RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental and safety regulations for industrial use worldwide.
