Dykem Cross-Check Tamper Proof Torque Mark - Red

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DYKEM® Cross-Check™ Torque Seal® Tamper-Proof Indicator Paste provides a convenient visual method for identification of vibratory loosening or tampering in nuts, bolts, fasteners, and assemblies. Provides warranty protection against tampering. Marks will be easily broken if parts are tampered with or become loose. Highly visible under ambient light and fluorescent under UV light. Excellent adhesion to metal and other substrates.


  • Tamper Proof Torque Mark
  • Safe for most surfaces
  • Highly visible- blue, yellow, red, green, and orange colors are fluorescent under blacklight
  • Excellent adhesion
  • Visually detects loose nuts & bolts
  • Provides warranty protection
  • Meets BOEING Specification, BMS8-45 Type II


  • Nuts
  • Bolts
  • Fasteners
  • Assemblies


  • Approved product replacement for Organic's Company F-900 Torque Seal
  • Boeing Specification: BMS8-45 REV H Type II
  • NORTHROP GRUMMAN GC115UG rev K - Colors: Orange, Red, Yellow, Blue, White, Pink
  • Lockheed Martin 302-40812
  • CPW487 Rev. B
  • Size 1 oz


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