S-91255A245 10-24 x 3/4" 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 of 120,000 psi ensures reliable performance in demanding mechanical assemblies
- Superior corrosion resistance from the black-oxide finish extends service life in harsh industrial environments
- Precise Class 3A thread fit provides secure, vibration-resistant connections with minimal risk of loosening
- Fully threaded design maximizes grip length and load distribution across the entire fastener
- High hardness rating (Rockwell C39) maintains thread integrity and prevents stripping during installation
- Standard hex drive compatibility allows for quick installation with common 1/8" tools
- Coarse UNC threading enables faster assembly and better performance in softer materials
Professional Applications & Engineering Value
These black-oxide alloy steel rounded head hex screws deliver critical performance advantages in industrial settings where corrosion resistance and high tensile strength are paramount. The Class 3A thread fit ensures precise engagement with mating components, reducing the risk of vibration-induced failure in machinery, automotive, and heavy equipment applications. The fully threaded 10-24 UNC design provides maximum holding power across the entire fastener length, while the button head profile offers a low-profile installation that minimizes protrusion. Engineered to withstand extreme mechanical stress, these industrial screws maintain their structural integrity even under continuous load conditions, making them ideal for critical assemblies requiring long-term durability and reliable performance.
Specification Summary & Compliance
This fastener features precision Class 3A thread tolerance with UNC coarse threading and right-hand thread direction. 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) environmental regulations, making it suitable for use in regulated industries and international markets.
