S-91255A838 8-36 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
- Superior corrosion resistance with black-oxide coating, ideal for harsh industrial environments.
- Exceptional tensile strength of 120,000 psi ensures reliable performance under high-stress conditions.
- Precise Class 3A thread fit guarantees secure, vibration-resistant fastening in critical assemblies.
- Fully threaded UNF fine thread design provides maximum grip and load distribution along the entire length.
- Rockwell C39 hardness offers excellent durability and resistance to wear and deformation.
- Hex drive (3/32") with rounded button head allows for easy installation and a low-profile, snag-free finish.
- Compliance with ASME B18.3, ASTM F835, RoHS 3, and REACH ensures quality, safety, and environmental standards are met.
Professional Applications & Engineering Value
Engineered for demanding industrial and precision applications, these 8-36 UNF Class 3A threaded screws address critical needs for reliability and longevity. The black-oxide alloy steel construction provides enhanced corrosion resistance, reducing maintenance in environments exposed to moisture or chemicals. With a fine thread and fully threaded design, they deliver superior clamping force and vibration resistance, making them ideal for machinery, automotive, and electronics assemblies where loosening is not an option. The combination of high tensile strength and Rockwell C39 hardness ensures these rounded head screws withstand repetitive stress, while the hex drive facilitates quick, secure installation in confined spaces.
Specification Summary & Compliance
This screw features precise Class 3A thread fit per UNF standards, ensuring tight tolerances for high-performance applications. It meets ASME B18.3 and ASTM F835 specifications for dimensional accuracy and mechanical properties. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), it adheres to environmental and safety regulations, supporting sustainable procurement in industrial sectors.
