S-90201A648 3/4"-10 x 3" Extreme-Strength Grade 9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Grade 9 rating and 180,000 PSI tensile strength for critical structural applications
• Superior corrosion resistance through zinc yellow-chromate plating that withstands harsh industrial environments
• Optimized thread engagement with UNC coarse threading and Class 2A fit ensures reliable fastening in high-vibration settings
• Enhanced installation efficiency featuring external hex drive and 1 1/8" head width for secure tool grip and torque application
• Controlled thread distribution with partial threading provides precise clamping force where needed most
• Consistent mechanical performance backed by Rockwell C38 hardness for maintained integrity under repeated stress
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial deployment

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these Grade 9 hex head screws deliver critical performance where failure is not an option. The zinc yellow-chromate plated steel construction provides exceptional corrosion protection in demanding environments like manufacturing plants, construction sites, and machinery assembly. The 3/4"-10 UNC coarse threading with Class 2A thread fit ensures rapid installation and reliable performance in high-vibration scenarios, while the partial threading design concentrates clamping force precisely where needed. The external hex drive with substantial 1 1/8" head width allows for high-torque application without stripping, making these high-strength bolts ideal for structural connections, heavy equipment maintenance, and critical infrastructure projects requiring 180,000 PSI tensile strength and consistent performance under extreme loads.

Specification Summary & Compliance

This 3/4"-10 UNC hex head screw maintains precise Class 2A thread fit tolerances with coarse thread spacing, ensuring consistent engagement and reliable fastening performance. Manufactured to exacting standards with partial threading extending to a minimum of 1 3/4" on the 3" length fastener. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations guarantees environmental responsibility and workplace safety. The Grade 9 classification and Rockwell C38 hardness specification ensure mechanical properties meet rigorous industrial requirements for high-strength applications.