Thread repair

Repair solutions

For defective threads, thin-walled components and in the high temperature range

Easy – Clever – Quick

Why replace components when you can repair them?

Turning old back into new. Our various repair solutions are a high-quality alternative. Easy, quick and significantly improved. With a repair, you save money and also protect the environment.

Method and principle

Thread repair with HELICOIL®

Excessive bolting torque, corrosion and even wear – these are just some of the reasons for thread damage.
HELICOIL® Plus thread inserts come in a variety of designs for quick thread repair. Using non-wearing HELICOIL® Plus thread inserts not only repairs threads but also increases the load capacity of the thread.

The process is very simple:

Simply drill out the defective thread and use the combined HELICOIL® Plus drilling and tapping tool to cut a new holding thread. You can then install the HELICOIL® Plus using the installation mandrel provided for this purpose. Now all you need to do is break off the tang using the tang break-off mandrel and the new thread with the HELICOIL® Plus thread insert is ready for use.

HELICOIL® thread insert on an installation mandrel — **HELICOIL® thread insert** on an installation mandrel

HELICOIL® locknuts for exhaust manifold and turbocharger attachments

It is well known that screw joints tend to work loose under load. In many applications, especially in the Automotive sector, it is absolutely necessary to take precautions against unintentional loosening. As a specialist in joining and assembly technology, we offer HELICOIL® locking nuts for these applications. An efficient combination of two fasteners: high-strength nut plus HELICOIL® Screwlock thread insert. These ideally designed fasteners are a perfect match, providing considerable advantages for screw joints with high requirements. We offer a collar nut version of the HELICOIL® locknutswith integrated washer, specifically intended for securely fastening exhaust manifolds.

HELICOIL® locknuts for attaching exhaust manifolds and turbochargers — **HELICOIL® locknuts** for attaching exhaust manifolds and turbochargers

Repair solutions for thin-walled components

RIVNUT® Blind rivet nuts

These are used where threads are required on thin-walled components. RIVNUT® Blind rivet nuts also ensure stronger threads. Typical applications include number plate attachments and repairs of defective threads for motorcycle frames.

RIVNUT® stainless steel – blind rivet nuts made of stainless steel — **RIVNUT® stainless steel**

RIVQUICK® Blind rivets

RIVQUICK® technology has proven to be a reliable method for the non-detachable joining of thin-walled components using blind rivets. It is also perfect for joining components that are only accessible from one side. No heat is generated during the installation of these blind rivets, so there is no distortion. They are also easy to use in layered components.

RIVQUICK® – Standard blind rivet — **RIVQUICK®** standard blind rivet

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Find the right solution for your application

HELICOIL®

HELICOIL® kits make it easy to repair defective threads in just a few steps. The kits are compact and tailored to your needs.

HELICOIL® Kit – Lambda probe threads
Contents

5 HELICOIL® Plus thread inserts

HSS hand tap with guide tang

Installation mandrel

Hexagon key SW 2.5

Tool adapter for 3/8" tool ratchet
HELICOIL® Kit – Oil drain threads
Oil changes are generally easy. But they become expensive and time-consuming if the oil drain thread is damaged. The alternative to replacing the oil pan or using an oversized thread is to use HELICOIL® Plus for thread repair.

Contents

10 HELICOIL® Plus thread inserts of each size in three lengths

Combined drilling and tapping tool

Hand tap (for interfering contours)

Installation mandrel, tang breaker, calliper
HELICOIL® Kit – Injector screw thread
Injectors have to be cleaned or replaced. We offer a HELICOIL® Plus kit specially designed for repairing the holding threads for removed or torn-off injector screws.

Contents

20 HELICOIL® Plus thread inserts of each size

Core hole drill bit 6.3 mm

M6 thread drill bit, 5H, 45°, spiral

M6 special installation mandrel
HELICOIL® Kit – Spark and glow plug threads
Due to its complicated production process, the cylinder head – along with the engine – is one of the most complex and expensive components on a motor vehicle. You can rely on our special HELICOIL® Plus kits for spark and glow plugs.

Contents

10 HELICOIL® Plus thread inserts of each size

Combined drilling and tapping tool

Installation mandrel
HELICOIL® Kit – Wheel bolt threads
When changing tires, the nut thread is often damaged by incorrectly screwing in or over-tightening the wheel bolt. The HELICOIL® Plus kit for nut threads on wheel hubs provides the solution. After a new holding thread has been created, a high-strength HELICOIL® thread insert is installed.

Contents

10 HELICOIL® Plus thread inserts

Combined drilling and tapping tool (special design)

Tang breaker

Caulking tool
HELICOIL® Kit – Wheel bearing threads
In addition to dynamic loads, wheel bearing housings are also exposed to high temperatures, spray water and road salt. Wear and tear are inevitable. You can use HELICOIL® Plus to repair defective threads on wheel bearing housings.

Contents

10 HELICOIL® Plus thread inserts

Combined drilling and tapping tool

Installation mandrel

Tang break-off mandrel
HELICOIL® Kit
Contents

HELICOIL® Plus thread inserts

Spiral drill (up to M12)

HSS hand tap

Installation mandrel

Tang breaker (up to M12)

*Each kit consists of one size of thread insert in three different lengths.
HELICOIL® Kit
Contents

HELICOIL® Plus thread inserts

Hand tap

Installation mandrel (M18 to M24 standard pitch)

Installation tool (M27 to M33 standard screw head and M18 x 1.5 to M36 x 1.5 fine thread pitch)

*Each kit consists of one size of thread insert in one length
HELICOIL® Kit
Contents

HELICOIL® Plus thread inserts in different sizes and lengths

Spiral drill up to M12 (with combined drilling and tapping tool for M14 x 1.25)

HSS hand tap

Installation mandrels

Tang breaker

HELICOIL® locknuts

An efficient combination of flange nut with integrated washer and HELICOIL® Plus Screwlock thread insert. Specifically intended for attaching exhaust manifolds and turbochargers.

HELICOIL® locknuts
We offer a collar nut version of the HELICOIL® locknutswith integrated washer, specifically intended for securely fastening exhaust manifolds.

Design variants

M8 nut with hexagon head

M8 nut with triple-square drive

Applications

Exhaust manifolds

Axles and motors

Turbochargers

Contents

50 locknuts of each size

RIVNUT® and RIVQUICK®

These repair kits make it easy to set blind rivet nuts and blind rivets on thin-walled components.

RIVNUT® Plus Kit – Thin head
The RIVNUT® Plus kit contains 50 RIVNUT® Plus blind rivet nuts with thin head of each size (M3, M4, M5 and M6) and the RIVNUT® BRK 01 setting tool for manual installation.

Contents

RIVNUT® Plus blind rivet nuts M3 to M6

Steel, zinc-plated

Thin head

BRK 01 setting tool

Additional mandrels and nose pieces for M3, M4, M5 and M6
RIVNUT® Plus Kit – Flat head
The RIVNUT® Plus kit contains 50 RIVNUT® Plus blind rivet nuts with flat head of each size (M4, M5 and M6) and the RIVNUT® BRK 01 setting tool for manual installation.

Contents

RIVNUT® Plus blind rivet nuts M4 to M6

Steel, zinc-plated

Flat head

BRK 01 setting tool

Additional mandrels and nose pieces for M3, M4, M5 and M6
RIVNUT® Plus Kit – Thin head
The RIVNUT® Plus kit contains RIVNUT® Plus blind rivet nuts with thin head in sizes M6, M8 and M10 and the RIVNUT® M2007 setting tool for manual installation.

Contents

50 M6 blind rivet nuts

25 M8 blind rivet nuts

25 M10 blind rivet nuts

Steel, zinc-plated

Flat head

RIVNUT® M2007 setting tool

3 mandrels and nose pieces for M6, M8 and M10
RIVNUT® Plus Kit – Flat head
The RIVNUT® Plus kit contains RIVNUT® Plus blind rivet nuts with flat head in sizes M6, M8 and M10 and the RIVNUT® M2007 setting tool for manual installation.

Contents

50 M6 blind rivet nuts

25 M8 blind rivet nuts

25 M10 blind rivet nuts

Flat head

Steel, zinc-plated

RIVNUT® M2007 setting tool

3 mandrels and nose pieces for M6, M8 and M10
RIVQUICK® Kit
The RIVQUICK® Kit contains a total of 558 parts, consisting of blind rivets, the BRS 02 setting tool for manual installation, and other accessories.

Contents

BRS 02 setting tool

Assorted aluminium blind rivets with steel tang

4 nose pieces

2 drill bits

Areas of application

Repair solutions in the automotive sector

Application example HELICOIL® Plus

Repairing the spark plug thread on a cylinder head with HELICOIL® Plus
Application example HELICOIL® Plus

Repairing a lambda probe receiving thread with HELICOIL® Plus
Application example HELICOIL® Plus

Repairing the wheel bolt thread on a wheel hub with HELICOIL® Plus
Application example HELICOIL® Plus

Repairing the injector screw thread on a cylinder head with HELICOIL® Plus
Application example HELICOIL® Plus

Repairing the oil drain thread on the oil pan with HELICOIL® Plus
RIVNUT® blind rivet nuts

Number plate attachment using a conventional screw thanks to RIVNUT® blind rivet nuts