S-91255A272 10-32 x 1 3/8" 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 finish, extending service life in harsh industrial environments.
- Exceptional mechanical strength from Alloy Steel, offering 120,000 psi tensile strength and Rockwell C39 hardness for high-stress applications.
- Precise and reliable fastening ensured by Class 3A thread fit and UNF fine threading, minimizing the risk of loosening under vibration.
- Efficient installation and removal with Hex drive design, allowing for high torque application and reducing assembly time.
- Full thread engagement along the 1 3/8" length provides maximum grip and load distribution in assembled components.
- Compliance with major industry standards including ASME B18.3 and ASTM F835, ensuring consistent quality and interchangeability.
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements.
Professional Applications & Engineering Value
These 10-32 UNF Rounded Head Screws are engineered to address critical challenges in precision assembly and heavy-duty machinery. The Black-Oxide Alloy Steel construction provides enhanced durability and corrosion resistance, making them ideal for automotive, aerospace, and industrial equipment where exposure to moisture and chemicals is common. The Class 3A thread fit and fine thread spacing deliver superior clamping force and vibration resistance, reducing maintenance needs and preventing joint failure. With a hex drive and fully threaded design, they enable quick, secure installations in tight spaces, improving workflow efficiency and reliability in demanding engineering applications.
Specification Summary & Compliance
This screw features a 10-32 UNF thread with Class 3A precision tolerance and fine thread spacing for exact fit. It is manufactured in accordance with ASME B18.3 and ASTM F835 specifications, ensuring dimensional accuracy and performance consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and sustainable usage in global markets.
