ND Industries Thread Armor VC process



Thread Armor® VC is a pre-applied thread lubricating coating process which contains a PTFE material for anti-galling on Stainless Steel fasteners. Cross-linking within the coating provides excellent solvent resistance, high temperature resistance, e-coat resistance, weld spatter resistance, resistance to most typically used automotive fluids, and improvement to torque-tension properties.

thread armor on bolt


After choosing Thread Armor® VC processing, have your parts sent to one of ND’s service centers. ND will then apply the appropriate materials to your fasteners with our automated equipment which ensures consistent, quality results. Coated fasteners are then dried and repacked as needed. Upon arrival, parts are ready for immediate installation and use.


Reliable Masking

Thread Armor VC prevents undesirable substances such as electro-deposited undercoatings, weld spatter and some other materials from adhering to fastener threads.

Low Heat Process

Unlike competitive processes which often subject parts to extremely high temperatures that may damage or discolor the fastener, ND’s unique patented process employs minimal heat.

Minimal Pre-Cleaning

Unlike competitive processes that require parts be completely free of oil or other rust preventative coatings, only parts with excessive oil or surface contaminants may require pre-cleaning.

Eliminates Capping & Plugging

Thread Armor VC eliminates the need to cap male and plug female threads.

Increases Productivity

Increases efficency by lubricating fastener threads which reduces driving friction, heat buildup, and thread galling in long rundowns while helping to ensure uniform clamp loading.

Versatile Application

Thread Armor VC processing creates a cross-linked coating which provides excellent solvent resistance, high temperature resistance, e-coat resistance, resistance to weld spatter, and improvement to torque-tension properties.


  • Saves Time & Money: ND Thread Armor VC processed fasteners eliminate the need for re-tapping, plugging, capping, and slave bolts. This increases greatly reduces labor and material costs.
  • Quality Control: Pre-Applied ND Thread Armor VC fasteners are coated to specification, ensuring consistent performance.
  • Improved Consistency: ND Thread Armor VC acts as a lubricant and reduces variation in torque tension while lowering installation torque.
  • Electrical Grounding: ND Thread Armor VC processing helps to guarantee a good electrical ground.


  • 5 year on-part life under ideal storage conditions [+14°F (-10°C) to +95°F (+35°C)], but re-certification must occur once a year.
  • To meet your specific application needs, ND Thread Armor VC employs a wide range of polymers, including fluorinated ethylene polymer material.
  • As with all our Pre-Applied products, ND Industries can apply ND Thread Armor VC to your fasteners at any one of our regional service centers, or we can supply you with completed pre-applied fasteners.

Thread Armor VC Competes With

  • Nylok® Nycote®

Nylok® and Nycote® are registered trademarks of Nylok LLC, USA.


Compressors, Clamping applications, Mining equipment, Tool holders on lathes and screw machines.
Any parts subject to repeated installations and removals for service or adjustment.
Stainless steel bolts in aluminum mating threads.

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, Tube Nuts, 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 StudsFlange 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.Blind Rivets, Break Stem Open Rivets, Closed-End Rivets, Easy-Entry Rivets, Grip Tite™ Rivets, High-Retention Rivets, High-Strength Rivets, Load Spreading Rivets (lsr), Micro Rivets, Multi-Grip Rivets (mgr), Open-End Rivets, Pull-Thru Rivets, Soft-Set Rivets, Tri-Fold Rivets, Ultra-Grip Rivets, Vgrip® Rivets, Grooved Rivets, Peel Rivets, Steel T Rivets, TVD Rivets, Interlock Rivets, Klik-Lok Rivets, Bulbing Rivets, Domed and Flat Head Solid Rivets, Low-Profile Domed Head Solid Rivets, Countersunk Head Solid Rivets, Mil. Spec Solid Rivets.

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

MaterialColorTemp MinTemp MaxSolvent Resistance*K Value**% Solids***
Poly (Tetrafluoroethylene) (PTFE) type material. Other polymers availableTeal (other colors available upon request)-65°F (-54°C)400°F (200°C)150 double MEK rubs 0.14 (typical value)50%

* (ASTM D5402-93 (99)) ** (ASTM D5648-01) (3/8” x 16 x 1 1/4” dry zinc phosphate coated steel nuts and bolts) K value = torque / tension x bolt diameter *** (by weight) (ASTM D2369-01)


Particular formulations of Thread Armor VC meet or exceed the performance requirements of the following specifications and/or standards:

Spec ForSpec NumberND ProcessND Material
VictaulicES1151Thread Armor® VCVC-1293

Safety, Technical & Process Data Sheets

Process NameMaterialSafety Data Sheet (Applied)Technical Data Sheet (Applied)Process Data Sheet
Thread Armor® VCVC-1293Thread Armor VC - TDS (Applied)Thread Armor VC - PDS
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