S-91255A046 3/8"-24 x 2" 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 tensile strength (120,000 psi) ensures reliable performance in high-stress industrial applications, reducing failure risks.
- Class 3A UNF fine threads provide superior thread engagement and vibration resistance for secure, long-lasting fastening.
- Black-oxide finish on alloy steel enhances corrosion resistance, extending service life in demanding environments.
- Rounded button head design offers a low-profile, snag-resistant installation ideal for confined spaces.
- 7/32" hex drive allows for high-torque application with standard tools, speeding up assembly and maintenance.
- Full threading along the 2" length maximizes grip and adjustability across the entire fastener.
- Compliance with ASME B18.3 and ASTM F835 guarantees consistent quality and interchangeability in regulated industries.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these Black-Oxide Alloy Steel Rounded Head Hex Screws address critical needs in machinery, automotive, and construction sectors where vibration loosening and corrosion are common challenges. The Class 3A UNF fine thread ensures precise fit and superior clamping force, minimizing maintenance downtime. With a Rockwell C39 hardness and 120,000 psi tensile strength, they withstand extreme loads without stripping or breaking. The low-profile rounded head and hex drive facilitate easy installation in tight spaces, while the black-oxide surface treatment provides added durability against moisture and chemicals, making them ideal for outdoor or harsh environment use.
Specification Summary & Compliance
This screw features a 3/8"-24 UNF fine thread with Class 3A fit for high precision and strength. It is manufactured to meet ASME B18.3 and ASTM F835 specifications, ensuring dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and sustainable industrial operations.
