Prevents Nuts and Bolts from Loosening with Vibration
Our 3M Scotch-Weld Threadlocker TL71 hardens and seals threaded assemblies to resist vibration and prevent loosening or leakage of secured fasteners. Applying this adhesive to fasteners before tightening seals out moisture and prevents corrosion. Application is fast and easy with just a targeted squeeze of the bottle. The anaerobic formulation begins to cure quickly into a polymer that seals, secures, and retains. An activator can be used for even faster cure or larger gap sizes. The high strength adhesive is only removable through high heat application.
Recommended Applications
- Threadlocking of screws, bolts and nuts
- Applications vary by temperature resistance, removability and oil tolerance
Eliminates the Need for Lock Washers and Other Locking Components
Our 3M Scotch-Weld Threadlocker TL71 is effective for locking, vibration resistance, sealing, and bonding threaded assemblies. Places where it is useful include machine tool access bolts, hydraulic system bolts, gear box/driveshaft bolts, bearing cover cap screws, countersunk screws and conveyor roller bolts.
Understanding Anaerobic Adhesives
Anaerobic adhesives are uniquely formulated to cure in the absence of oxygen. The term “anaerobic” means “living without air” and when the oxygen is excluded, a chemical chain reaction begins that causes the adhesive to polymerize. Contact with metal speeds the polymerization process and rapidly accelerates the curing process, forming tough cross-linked plastic that provides aggressive adhesion with effective shear strength.
More commonly referred to as threadlockers, pipe sealants, retaining compounds, and gasket makers, these adhesives are often used to enhance the seal, or holding force, in the threads of joined fastener systems such as nut-and-bolt assemblies. A nut-and-bolt assembly may have as little as 15% metal-to-metal contact and even a small amount of anaerobic adhesive readily fills any air voids between the threads and then hardens to a thermoset plastic. These unique adhesives are easy-to-dispense, cure rapidly, and provide effective torque strength while resisting temperature and vibration and sealing out moisture and gasses to protect against corrosion. Anaerobic adhesives can decrease manufacturing costs, enhance equipment reliability, minimize aftermarket breakdown, and reduce warranty claims.

Dynabrade 52515 4-1/2" Dia. Right Angle Disc Sander, Rear Exhaust, .55 HP, 15,000 RPM, 5/8"-11 Thread
Dynabrade 53053 Chuck Key for 53033, 53087 Chuck
Dynabrade 78305 1-1/2" Dia. x 1" W x 1/4" Shank, 80 Grit, A/O DynaCut Flap Wheel, 10/pack
Dynabrade 12204 Stockade Reciprocating Sander, .4 HP, 2,400 SPM
Dynabrade 95886 Washers For Vacuum Shroud (57737)
Dynabrade 95263 Open-End Wrench, 17 mm
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
Dynabrade 79151 1" W x 24" L 60 Grit DynaCut Premium Ceramic Belt, 50/pack
Dynabrade 13310 Mini-Dynisher Finishing Tool Versatility Kit, .4 HP, Rear Exhaust, 3,200 RPM, 5/8" Arbor
Dynabrade 79139 1/8" W x 24" L 60 Grit Ceramic DynaCut Belts, 50/pack
Dynabrade 13506 Dynastraight Finishing Tool, 1 HP, Rear Exhaust, 3,400 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
Dynabrade 52218 .5 hp 7 Degree Offset Die Grinder, Front Exhaust, Long Shank, 20,000 RPM, 1/4" Collet
Dynabrade 92115 1/2" W x 12" L 220 Grit A/O DynaCut Belt, 50/pack
Dynabrade 91315 11-1/4" Dia. x 36 Grit A/O Non-Vacuum Hook-Face DynaCut Disc, 10/Box
Dynabrade 11254 Contact Arm Ass'y, 4-3/4" Dia. x 1/2" W
Dynabrade 15300 Dynafile III Abrasive Belt Tool
Dynabrade 64206 33" (84 cm) W x 60" (152 cm) L Downdraft Sanding Table, 230 V (AC)
Dynabrade 13511 Dynastraight 6" (152 mm) Extension Finishing Tool, 1 HP, Rear Exhaust, 1,800 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
Dynabrade X31V - 3" Dia. Cen-Vacuum Dynorbital® Mini Extreme Random Orbital Sander
Dynabrade 50617 Dust Collection System
Dynabrade 95990 Wet Tank Assembly
Dynabrade 90405 1/8" W x 24" L 60 Grit A/O DynaCut Belt, 50/pack
Dynabrade 11477 Dynabelter Abrasive Belt Tool, Heavy-Duty
Dynabrade 15360 Dynafile III Abrasive Belt Machine for 24" Belts
3M 87449 Silver Depressed Center Grinding Wheel, T27 Quick Change, 9 in x 1/4 in x 5/8-11 Center Hub Thread, 7010409732, 20 per case
Dynabrade 78319 3" Dia. x 1" W x 1/4" Shank, Coarse, NWN DynaBrite Wheel, 10/pack
Dynabrade 92186 1" W x 30" L 60 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 95965 Water Flow Adjustment
Norton 66261014897 2" x 1/4" Bear-Tex NEX Rapid Blend AO Medium Grit TR (Type III) Non-Woven Wheel, 60 Each
3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
Dynabrade 40320 Dynafile II Abrasive Belt Tool
Dynabrade 51301 .5 hp Straight-Line Die Grinder
Dynabrade 22070 Downdraft Table Accessory Pack (Air Manifold, FRL and On/Off Air Valve)
Dynabrade 95842 Dynabrade Air Lube 10W/NR, 1 Pint
3M 62661, Scotch-Weld General Purpose Retaining Compound RT09, Green, 10 mL Bottle, 7100039228, 10/case
Dynabrade 78423 4-1/2" Dia. x 3/8" Very Fine DynaBrite Surface Conditioning Disc, 25/pack
3M 20942, Scotch-Weld Urethane Adhesive 3549, Brown, Part A, 5 Gallon Drum, (Pail), 7100041738
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
Dynabrade 79129 1" W x 18" L 60 Grit DynaCut Premium Ceramic Belt, 50/pack
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
3M 28848, Unitized Wheel Mandrel 28848, 1-5/8 in x 1/4 in x 3/4 in x 1/4 in, 7100082547
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
Dynabrade 14000 Dynafile Abrasive Belt Tool
3M 65033, Scotch-Brite Diamond Wheel, 645DC 6 in x 1/2 in x 1 in, 7010365574, Box of 3
3M 86802, Cubitron II Stikit Film Disc 775L, 80+, 5 in x NH, Linered w/Tab, Die 500X, 7100048736, 250 per case
3M 33439, Cubitron II File Belt, 33439, 60+, 10 mm x 330 mm (3/8 in x 13 in), 7100033194, 10 belts per carton, 5 cartons per case 
