Overview
Cross-Check™ Tamper Proof Torque Mark DYKEM® Cross-Check™ 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 marks.  Excellent adhesion to metal and other substrates. •Tamper Proof Torque Mark •Safe for most surfaces •Highly visible •Excellent adhesion •Visually detects loose nuts & bolts •Provides warranty protection Alternates with F900 Blue Torque Seal

Features & Benefits
- Tamper-proof indication: Marks break if fasteners move, revealing loosening or tampering
- High visibility: Bright blue in ambient light and fluorescent under UV for easy inspection
- Excellent adhesion: Sticks securely to metal and other substrates to maintain marking integrity
- Vibration resistance: Withstands high-vibration environments for reliable detection
- Warranty protection: Provides a visual record to detect unauthorized disassembly or movement
- Faster inspections: Facilitates quick visual checks and reduces inspection time

Specifications
- Part Number: 83318
- Manufacturer: Dykem® (ITW Professional Brands)
- Form: Viscous Paste
- Color: Blue
- Container Size: 1 oz tube
- Visibility: Ambient light and UV fluorescent
- Dry to touch time: 30–40 minutes
- Cure Time (Full Cure): 24 hours
- Operating Temperature: -20°F to 400°F (-29°C to 204°C)
- Flash Point: 105.1°F (40.6°C)
- Shelf Life: 1095 days (3 years)
- Applications: Visual detection of loosened or tampered fasteners on critical components

Technical Information
- Boeing Specification: BMS8-45 Type II