S-91253A867 3/4"-10 x 8" ASTM F835 Alloy Steel Hex Drive Flat Head Screws
Alloy Steel Hex Drive Flat Head 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 130,000 psi ensures reliable performance in demanding applications, reducing the risk of fastener failure.
- Superior thread fit with Class 3A tolerance provides precise engagement and vibration resistance, enhancing assembly integrity.
- Black-oxide finish on alloy steel offers improved corrosion resistance, extending service life in harsh industrial environments.
- Partially threaded design with coarse UNC spacing allows for faster installation and secure clamping in various materials.
- 1/2" hex drive compatibility enables easy installation with standard tools, boosting efficiency on the production line.
- High hardness (Rockwell C37) maintains thread integrity and durability under heavy loads and repeated use.
- Compliance with ASTM F835, RoHS 3, and REACH ensures adherence to industry standards and environmental regulations for safe, global use.
Professional Applications & Engineering Value
These 3/4"-10 UNC flat head screws are engineered to address critical challenges in heavy machinery, construction, and structural assemblies where high tensile strength and vibration resistance are paramount. The black-oxide alloy steel construction combats corrosion in outdoor or humid conditions, while the Class 3A thread fit minimizes loosening under dynamic loads. With a coarse thread spacing and partial threading, they provide rapid installation and firm grip in wood, metal, or composite materials, making them ideal for applications requiring robust, long-lasting fastening solutions without compromising on compliance or ease of use.
Specification Summary & Compliance
This screw features a 3/4"-10 UNC thread with Class 3A fit for high precision, coarse thread spacing, and a minimum thread length of 2 inches. It meets ASTM F835 specifications for mechanical properties and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability in industrial use.
