S-91255A015 1-72 x 3/16" 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
- Superior corrosion resistance with black-oxide coating, extending service life in demanding industrial environments.
- High tensile strength of 120,000 psi ensures reliable, secure fastening under heavy loads and vibrations.
- Precise Class 3A thread fit provides excellent engagement and reduces the risk of cross-threading in fine-thread applications.
- Hex drive design allows for easy installation and high torque application with standard tools, minimizing slippage.
- Fully threaded shank offers maximum grip and uniform stress distribution along the entire length.
- Rounded button head profile delivers a low-profile, finished appearance while reducing surface snagging.
- Compliance with ASME B18.3, ASTM F835, RoHS 3, and REACH guarantees consistent quality and environmental safety for global supply chains.
Professional Applications & Engineering Value
This 1-72 UNF fine thread screw is engineered from black-oxide alloy steel to address critical challenges in precision assembly, such as vibration resistance and corrosion prevention. The fine thread and Class 3A fit ensure tight tolerances in applications like electronics, aerospace components, and medical devices, where minimal clearance and reliable fastening are paramount. The hex drive facilitates efficient installation in confined spaces, reducing assembly time while maintaining high tensile strength (120,000 psi) for enduring performance. Ideal for industries requiring RoHS and REACH compliant fasteners, it supports sustainable manufacturing without compromising on durability or mechanical integrity.
Specification Summary & Compliance
This screw adheres to inch system dimensions with a 1-72 UNF fine thread and Class 3A thread fit for precision. It meets ASME B18.3 and ASTM F835 specifications, ensuring consistent manufacturing quality. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally safe and regulated industrial use.
