S-93734A200 1/2"-13 x 3" Tension-Indicating Hex Head Screws

Key Features & Benefits at a Glance

• Precise tension monitoring with visual load indication up to 12,000 lbs, eliminating guesswork in critical assembly applications
• Exceptional strength reliability with Grade 8 classification and 150,000 psi tensile strength for heavy-duty industrial use
• Superior corrosion protection through zinc yellow-chromate plating on steel, extending service life in harsh environments
• Optimized thread engagement with Class 2A UNC coarse threads ensuring secure fastening and vibration resistance
• Enhanced installation efficiency featuring external hex drive and 3/4" head width for standard tool compatibility
• Temperature resilience maintaining performance across 0° to 165° F operating range for diverse industrial conditions
• Partial threading design providing optimal clamp load distribution and shear strength where required

Professional Applications & Engineering Value

Engineered for critical structural applications where load verification is essential, this Grade 8 hex head screw addresses the fundamental challenge of ensuring proper bolt tension in heavy machinery, construction equipment, and industrial assemblies. The tension indicating feature provides visual confirmation when the 12,000 lbs preload is achieved, preventing both under-tightening (which causes joint failure) and over-tightening (which damages components). Manufactured from zinc yellow-chromate plated steel with Rockwell C33 hardness, it delivers exceptional corrosion resistance while maintaining structural integrity across temperature variations from 0° to 165° F. The 1/2"-13 UNC coarse thread configuration ensures rapid installation and reliable performance in high-vibration environments common in industrial settings.

Specification Summary & Compliance

This heavy-duty hex head screw features Class 2A thread fit tolerance with 1/2"-13 UNC coarse threads and partial threading configuration. Manufactured to Grade 8 strength standards with 150,000 psi tensile strength and Rockwell C33 hardness. The fastener is REACH (EC 1907/2006) compliant and designed for use within 0° to 165° F temperature range, meeting industrial fastener requirements for quality and environmental responsibility.