S-90201A449 1/2"-13 x 6" Extreme-Strength Grade 9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 180,000 PSI tensile strength for reliable performance in high-stress applications
• Superior corrosion resistance through zinc yellow-chromate plating that protects against harsh industrial environments
• Optimized thread engagement with UNC coarse threading and Class 2A fit ensuring secure fastening and vibration resistance
• Enhanced durability from Rockwell C38 hardness that maintains structural integrity under repeated use
• Easy installation and removal with external hex drive design providing maximum torque application
• Versatile partial threading allowing for both clamping force and adjustment flexibility in assembly
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial use

Professional Applications & Engineering Value

This Grade 9 hex head screw delivers critical engineering solutions where high tensile strength and corrosion resistance are paramount. The zinc yellow-chromate plated steel construction provides exceptional protection against environmental degradation, making it ideal for outdoor equipment, structural frameworks, and heavy machinery applications. The 1/2"-13 UNC coarse thread design ensures rapid installation and superior holding power in various materials, while the partial threading allows for precise clamping force distribution. Engineered with Rockwell C38 hardness, these screws maintain their mechanical properties under extreme conditions, preventing thread stripping and deformation. The external hex drive facilitates high-torque applications with standard tools, reducing installation time in industrial assembly lines and maintenance operations.

Specification Summary & Compliance

This fastener features precision Class 2A thread fit with 1/2"-13 UNC coarse thread specifications, ensuring consistent performance across industrial applications. Manufactured to exacting standards with 6" length and 1 1/4" minimum thread length, the screw maintains dimensional accuracy for reliable fastening. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for international markets and environmentally conscious manufacturing requirements.