Loctite Heavy Duty Threadlocker Blue 242 is a reliable, medium-strength liquid adhesive designed to lock and seal threaded metal fasteners. Ideal for automotive, industrial, and repair applications, it prevents loosening caused by vibration while still allowing disassembly with standard hand tools when needed. It protects threads from rust and leakage, making it perfect for maintenance of tools, motors, mowers, and power equipment.

Key Features

• Medium-strength blue threadlocker for removable fasteners
• Prevents loosening from vibration and mechanical shock
• Suitable for 1/4" to 3/4" (6mm–20mm) bolts and nuts
• Seals threads to prevent rust and leakage
• Works on all types of metal surfaces
• Allows easy disassembly with hand tools
• Ideal for automotive, industrial, and repair use
• Quick set in ~20 minutes, full cure in 24 hours

Product Details / Specifications

• Brand: Loctite
• Model: 242 (209728)
• Product Type: Threadlocker (Liquid)
• Color: Blue
• Material Compatibility: Metal
• Item Form: Liquid
• Container Type: Tube
• Volume: 0.2 fl oz per tube
• Unit Count: 24 Pack (Total 4.8 fl oz)
• Viscosity: Moderate
• Full Cure Time: 24 Hours
• Set Time: ~20 Minutes
• Water Resistance: Not water resistant
• Special Features: Vibration resistant, heavy-duty bonding
• Application: Repair, automotive, industrial, tool maintenance
• Fastener Range: 1/4" to 3/4" (6 mm to 20 mm)
• Item Weight: 1.44 lb (pack)
• Manufacturer: Loctite