S-97972A115 1/4"-20 x 1" Extreme-Strength Steel Flanged Hex Head Screws
Extreme-Strength Steel Flanged Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
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Key Features & Benefits at a Glance
- Enhanced corrosion resistance with black-oxide steel coating for extended service life in demanding environments
- Superior load-bearing capability with 180,000 psi tensile strength for heavy-duty applications
- Optimized installation efficiency with UNC coarse threads providing faster assembly and reduced cross-threading risk
- Secure anti-loosening performance through integrated flange design that eliminates need for separate washers
- Precise thread engagement with Class 2A fit ensuring consistent mating with standard nuts and tapped holes
- Exceptional durability with Rockwell C38 hardness maintaining structural integrity under repeated stress
- Maximum thread engagement through fully threaded design for superior holding power across the entire fastener length
Professional Applications & Engineering Value
These black-oxide steel hex head screws deliver critical performance advantages in industrial settings where vibration resistance and corrosion protection are paramount. The UNC coarse thread pattern excels in applications involving soft materials or rapid assembly lines, while the integrated flange provides distributed clamping force that prevents surface damage and maintains joint integrity. With 180,000 psi tensile strength and Rockwell C38 hardness, these fasteners withstand extreme mechanical stresses in machinery, automotive assemblies, and construction equipment. The external hex drive accommodates standard wrenches for high-torque applications, making them ideal for maintenance operations and production environments where reliability cannot be compromised.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit for consistent compatibility with standard mating components. Features UNC coarse thread specification (1/4"-20) with fully threaded design and 1" length. Complies with industry standards for inch system fasteners and meets material specifications for black-oxide steel corrosion protection. Suitable for applications requiring reliable performance under demanding mechanical conditions.
