S-91253A550 1/4"-20 x 2" ASTM F835 Alloy Steel Hex Drive Flat Head Screws
Alloy Steel Hex Drive Flat Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Exceptional corrosion resistance with black-oxide coating, ideal for harsh industrial environments.
- Superior strength and durability from alloy steel construction, ensuring reliable performance under high stress.
- Precise, secure fastening with Class 3A thread fit, minimizing loosening in vibration-prone applications.
- Easy installation and removal using a standard 5/32" hex drive, reducing assembly time and labor costs.
- Optimized flush mounting with an 82° countersink angle and standard flat head profile for a smooth, professional finish.
- Enhanced load distribution through UNC coarse threading, providing strong holding power in various materials.
- Compliance with major industry standards including ASME B18.3 and ASTM F835, ensuring consistent quality and safety.
Professional Applications & Engineering Value
This 1/4"-20 x 2" flat head screw is engineered to address critical challenges in industrial and mechanical assemblies. Constructed from black-oxide alloy steel, it offers excellent resistance to rust and wear, extending service life in demanding conditions. The UNC coarse threading and Class 3A thread fit ensure tight, reliable connections that resist vibration and shock, reducing maintenance needs. Its partially threaded design allows for precise clamping force control, while the hex drive facilitates quick installation with common tools. Ideal for machinery, automotive, and construction applications, this screw provides a robust, long-lasting fastening solution that meets rigorous performance standards.
Specification Summary & Compliance
This screw features a 1/4"-20 UNC coarse thread with Class 3A thread fit for high precision and strength. It is manufactured in accordance with ASME B18.3 and ASTM F835 specifications, ensuring dimensional accuracy and reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental standards for global industrial use.
