3M 7100039193 Threadlocker TL42 Blue 1.69 Fl Oz

Product Description

The 3M 7100039193 is a medium-strength, blue threadlocking adhesive sold under the 3M Scotch-Weld TL42 product line. It is designed to secure threaded fasteners against loosening caused by vibration and shock. Applied directly to bolt threads before assembly, it cures to lock fasteners in place while still allowing disassembly with standard hand tools when service is required. Each bottle contains 1.69 fl oz (50 mL) of liquid threadlocker, making it suitable for bench stock in maintenance shops, service vehicles, and trade applications where fastener security is a routine requirement.

This threadlocker is used across a wide range of trade applications including HVAC equipment assembly, plumbing fixture installation, electrical panel and conduit work, and general mechanical maintenance. It is appropriate for use on metal threaded fasteners in both residential and light commercial settings. The 1.69 fl oz bottle format is practical for field technicians and shop mechanics who need a controlled, portable supply for frequent use.

Key Features

• Medium-strength blue formula allows removal with hand tools during service
• Resists loosening from vibration and thermal cycling
• Liquid application for even coverage on threaded surfaces
• 50 mL bottle size suits field and bench use
• Single-component formula requires no mixing

Compatibility

Designed for use on metal threaded fasteners in general mechanical, HVAC, plumbing, and electrical maintenance applications where medium-strength thread retention is required.

Installation Notes

Applied by licensed or qualified tradespeople during equipment assembly or maintenance. Clean and degrease threads before application to ensure proper cure. Allow adequate cure time before subjecting the fastener to load or torque. Always follow the manufacturer application guide for surface preparation and cure schedule.

Technical Specifications

• Model: TL42
• Color: Blue
• Volume: 1.69 fl oz (50 mL)
• Weight: 0.2 pounds
• Unit of Measure: Each
• UPC: 00048011626062

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100039193