Authorised Indian Partner / Applicator for Tecnologic 3 · Italy
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Pre-Applied Thread Treatment · Rohtak, India

The locking system arrives on the thread.

Threadlockers, sealants, nylon locking patches, anti-seize and functional lubricants — applied, cured and torque-tested on our automated lines. Your fastener reaches the assembly station ready to install.

Steel hex bolt with a pre-applied teal threadlocker band on its threads
Live 3D — move your mouse
Torque-tested before releaseEvery production batch
T3
Tecnologic 3 · ItalyAuthorised Indian Applicator

Globally developed water-based pre-applied chemistry, applied on our automated production lines in Rohtak — with controlled application, curing and functional testing.

Our Technology
5Fastener technologies in the group
7Controlled process steps
3Threadlocker performance grades
100%Batches torque-tested before release
01 · Why Pre-Applied

Move the process away from the assembly line.

Liquid threadlocker at the assembly station means extra steps, operator-dependent dosing and curing to manage. Pre-applied treatment moves the whole operation upstream — to a controlled production line.

AT THE LINE TODAY

Manual liquid application

Every joint depends on the operator and the bottle.

Open bottle Apply chemical Control quantity Assemble Manage curing
WITH PR PREAPPLIED

The function arrives on the fastener

No bottle, no dispensing, no operator variation at your line.

Fastener Surface prep Controlled treatment Curing Torque inspection Ready to assemble
Scroll — The Coating Happens Live

Watch the function arrive on the thread.

PREVAILING TORQUE0.00 Nm
PHASE 01

Clean & prepare

Oil and contamination removed; the thread surface prepared for consistent bonding.

PHASE 02

Controlled application

The dispensing head deposits a precise teal band of microencapsulated threadlocker on the defined thread area.

PHASE 03

Curing & inspection

Process conditions bring the coating to its functional state; pattern, coverage and appearance verified.

PHASE 04

Torque-tested release

Breakaway and prevailing torque measured against specification — then packed, assembly-ready.

02 · Our Systems

One thread. Four functions.

Locking, sealing, prevailing torque or controlled friction — we apply the function your joint actually needs.

Automated fastener coating line applying a teal band onto bolt threads
03 · Automated Application

Precision application. Repeatable results.

Automated production equipment applies controlled bands of functional material onto threaded components — then cures, inspects and torque-tests them before a single part leaves Rohtak.

  • Cleaning and surface preparation before every application
  • Controlled deposition on defined thread areas
  • Controlled curing to the required functional state
  • Breakaway & prevailing torque measured against specification
See the 7-Step Process
04 · Why PR Preapplied

Why customers move to pre-applied treatment.

01

Zero manual application

The locking or sealing function arrives already on the component — nothing to dispense at assembly.

02

Consistent application

Controlled automated deposition removes operator-dependent variation from the joint.

03

Controlled torque

Functional testing verifies assembly performance before parts are released.

04

Cleaner assembly process

No bottle, brush or liquid dispensing anywhere near your line.

05

Reduced process time

The pre-treatment operation moves upstream — your takt time gets it back.

06

Ready-to-assemble fasteners

Components reach the assembly station ready for installation. Pick, place, torque.

05 · Application Areas

From fasteners to critical assemblies.

AUTOMOTIVE

Engine components, chassis, brackets, suspension, brake systems, sensors and fluid connections.

COMMERCIAL VEHICLES

Heavy-duty fasteners, chassis assemblies, engine components and hydraulic systems.

AGRICULTURAL

Tractors, implements, hydraulic systems and structural fasteners.

INDUSTRIAL

Pumps, valves, compressors, machinery, electrical equipment and general engineering.

06 · The PR Products Group Advantage

One group. Multiple fastener technologies.

An integrated fastener-processing ecosystem on Hissar Road, Rohtak — from forging to the finished, function-ready fastener.

ForgingHot & cold formed parts
+
FastenersNuts & engineered parts
+
PlatingElectroplated finishes
+
Zinc Flake CoatingHigh corrosion protection
+
Pre-Applied TreatmentsThis facility
FAQ

Answers engineers ask us first.

What is a pre-applied threadlocker?
A pre-applied threadlocker is a dry, microencapsulated adhesive coating applied onto the fastener threads in advance. During assembly the mating threads rupture the microcapsules, and the adhesive cures into a bonded locking interface — no liquid threadlocker, bottle or dispensing at the assembly line.
Which threadlocker systems do you apply?
We apply the Tecnologic 3 (Italy) microencapsulated product family — Tecnologic 15, 70 and 150 — covering controlled locking through high-performance grades, including options for elevated operating temperatures. Exact strength, torque and temperature values are always taken from the current Tecnologic 3 technical datasheets.
Can a pre-applied fastener be removed and reused?
Adhesive threadlocker systems are generally designed for one assembly. If your joint needs prevailing torque with reusability — for service or repeated assembly — we apply a nylon locking patch instead, which locks mechanically without any adhesive cure.
Do you also seal threads, not just lock them?
Yes. We apply pre-applied thread sealants for straight and tapered threads — hydraulic and pneumatic fittings, pipe plugs, sensors — as well as under-head sealing for flange bolts, covers, housings, pumps and valves.
What details do you need for a quote?
A fastener drawing and monthly quantity are enough to start. Ideally also share the part number, thread size, material, surface finish, required torque, operating temperature, sealing requirement and any OEM specification — we then recommend the right system with torque data.
Where is your facility located?
Plot No. 215, HSIIDC, Hissar Road, Rohtak – 124001, Haryana, India — part of the PR Products Group's integrated fastener-processing ecosystem covering forging, fasteners, plating, zinc flake coating and pre-applied treatments.
Tell Us About Your Joint

Your drawing. Your torque.
Your specification.

Send us your fastener drawing, thread size, torque requirement and monthly quantity — we will recommend the right pre-applied system and application process.