ND Microspheres® TA


ND Microspheres TA is a process in which dual microencapsulated, room temperature curing threadlockers are applied to male or female threaded fasteners of virtually all sizes, configurations, materials and finishes. Dual microencapsulation results in a threadlocker which is less susceptible to environmental conditions. Pre-applied ND Microspheres TA fasteners arrive dry to the touch and ready for assembly.

How it Works

After choosing ND Microspheres TA processing, have your parts sent to one of ND’s service centers.  ND will then apply a microencapsulated activator and resin in a binder solution. This material dries on the part and is then shipped back to the customer for use. When installed, the shearing forces caused by engagement with a mating part release the activator and resin, allowing them to mix. The resulting chemical reaction rapidly bonds the surfaces, locking the parts together and sealing leak paths.



ND Microspheres TA processing is compatible with most fastener sizes, configurations, materials and finishes.

Specially Designed

ND Microspheres TA processing is available in three formulas to meet differing needs including; low strength, high strength, and high temperature with torque tension control.

Chemical Resistant

A cross-linked molecular structure makes TA Series materials some of the most resistant types of adhesives. Oil, gasoline, salt spray, acids, solvents, and water have virtually no effect on parts after final cure.

Low Prevailing on Torque

ND Microspheres TA Series processed fasteners assemble easily with common hand tools.

Long Shelf Life

Parts processed with ND Microspheres TA have an on part life of 4 years* and will remain inert until a cure is activated by engagement with a mating thread.

Surpasses IFI Standards

ND Microspheres TA processed fasteners meet or exceed all torque requirements of IFI 125, IFI 525, as well as automotive adhesive coated fastener performance specifications.


  • Saves Time: ND Microspheres TA processed fasteners can be automatically fed through standard feeding devices – speeding up your process and improving productivity.
  • Saves Money: ND Microspheres TA processing is less expensive than hand applying bottled thread locking compounds at the point of assembly. It also eliminates the need for costly lock washers, cotter pins or castellated nuts.
  • Quality Control: Pre-Applied ND Microspheres fasteners are coated to specification, ensuring consistent performance, unlike the variation from hand applying bottled products.
  • Reliability: Under most operating conditions, ND Microspheres TA are unaffected by vibration or reversal of stress and greatly reduces the need to re-tighten fasteners.
  • Increased Margins: Add value to your fasteners without adding to inventory by supplying customers with self-locking fasteners.


  • Under typical conditions, ND Microspheres TA will fixture after 4 minutes with a full cure in 24 hours.
  • Typically the first one to three threads from the end of the fasteners are left free of material to assure ease of starting.
  • It is recommended that ND Microspheres TA processed parts are not reused
  • Materials used with ND Microspheres TA processing have an on part life of 4 years. ( When stored in a dry, cool environment.)

ND Microspheres TA Competes With


Engine Applications, Wheel Bearings, Automotive Locking Applications, Automotive Body/Frame Bolts, Suspension Areas, Brakes, Rear-End, Transmissions

Compatible Fasteners

External Threads:Internal Threads:Rivets:
Banjo Bolts, Hex Bolts, Flange Bolts, Wheel Bolts, Machine Screws, Cap Screws, Wood Screws, Sheet Metal Screws, Self Drilling Screws, Shoulder Bolts, Fully Threaded Studs, Double Ended Studs, Singled Ended Studs, Press-In Captive Studs, Carriage Bolts, Lag Bolts, Socket Screws, Set Screws, Eye Bolts, Eye Lags, J-Bolts, U-Bolts, Elevator Bolts, Hangar Bolts, Perforated Base Studs, Through Hole Weld Studs.Flange Nuts, Hex Body Clinch Nuts, Prevailing Torque Nuts, Floating Nuts, Hollow Bolts, Insert Nuts, Lock Nuts, Weld Nuts, Barrel Nuts, Chicago Bolts, Jam Nuts, Wing Nuts, Square Nuts, Self-Locating Projection Weld Nuts (WN/WNS), Spot Weld Nuts, Projection Weld Nuts, Bridge Spot Weld Nuts, Tab Spot Weld Nuts, Square Projection Weld Nuts, Flange Weld Projection Nuts, Stamped Flange Weld Nuts, Spot Weld Cage Nuts.N/A

Don’t see your parts on this list? We process thousands of different types of fasteners and depending on the quantity will gladly look at whether we can accommodate yours as well.

Technical Data

MaterialColorCompetes WithPrimary UsePrevailing on Torque*Breakaway Torque*Temp MinTemp MaxBase SolventLubricity
TA 300YellowNylok® Precote® 30, omniTECHNIK® Precote 30®, ThreeBond® 2471 & 2415Low Strength<1.13 Nm15 Nm-58°F (-50°C)300°F (150°C)TolueneMedium
TA 800RedNylok® Precote® 80, omniTECHNIK® Precote 80®High Strength<1.13 Nm23 Nm-58°F (-50°C)392°F (200°C)TolueneLow
TA 850TurquoiseNylok® Precote 85®, omniTECHNIK® Precote® 85, ThreeBond® 2403 & 2411High Strength Torque Tension Control<1.13 Nm20 Nm-58°F (-50°C)392°F (200°C)TolueneHigh

*On Dry Phosphate After 24 hr. cure @ R.T.‰‰

Nylok® is a registered trademark of Nylok LLC, USA. Omnitechnik®, Precote®, Precote 30®, Precote 80®, and Precote 85® are registered trademarks of Omnitechnik, Mikroverkapselungs GMBH LLC, Germany. Threebond® is a registered trademark of Threebond Holdings CO., LTD Corporation, Japan.


Particular formulations of ND Microspheres TA meet or exceed the performance requirements of the following specifications and/or standards:

Spec ForSpec NumberND ProcessND Material
Caterpillar1E2486ND Microspheres TATA850
FordESS-M11P24-A2ND Microspheres TATA800
General MotorsGM6124MND Microspheres TATA850
General MotorsGM6175MND Microspheres TATA800
General MotorsGM6194MND Microspheres TATA800
General MotorsGME00151ND Microspheres TATA800
General MotorsGMW14657A ND Microspheres TATA850
General MotorsGMW14657C   ND Microspheres TATA800
Harley DavidsonEG805-34900ND Microspheres TATA800
IFIIFI-125ND Microspheres TAMicrospheres TA
IFIIFI-525ND Microspheres TAMicrospheres TA

Safety, Technical & Process Data Sheets

Process NameMaterialSafety Data Sheet (Applied)Technical Data Sheet (Applied)Process Data Sheet
ND Microspheres® TA300ND3105ND Microspheres TA 300 - TDS (Applied)ND Microspheres TA - PDS
ND Microspheres® TA800ND Microspheres TA800 (Applied)ND Microspheres TA 800 - TDS (Applied)ND Microspheres TA - PDS
ND Microspheres® TA850ND3105ND Microspheres TA 850 - TDS (Applied)ND Microspheres TA - PDS
Increase product quality while saving time and money with Pre-Applied adhesives and sealants.