Time-Sert in Australia imported by:


Phone (FreeCall): 1800 025 500 or 02 4920 8966


Bottom few threads

with extra material are

roll formed as the insert

driver is wound through

Shipping to Adelaide South Australia, Brisbane Queensland, Melbourne Victoria, Northern Territory, Perth WA, Sydney NSW, Tasmania  direct  from extensive stock

Time-Sert Authorized Australian Importer

Helicoil Alternative Thread Repair

Full range metric & inch Time-Sert  incl. for LS engine & Gen 3,  M11x1.5 metric 1115 for Toyota engine, Honda engine, also BMW engine, Ford engine, VW, Harley Davidson,  Cummins, Detroit Diesel

What are Time-Serts and what are they used for?

Time-Serts are called "thread inserts" and are thin walled threaded sleeves generally made of steel. They have a screw thread on the inside and also on the outside and the "peak" or hill of the inside thread nests into the peak of the outside thread. This is how Time-Serts succeed in making the wall of their inserts extra thin.

Time-Serts are used for  repairing stripped threads or in manufacturing to create stronger new threads in soft materials like aluminium or plastics. Because Time-Serts are so thin walled they take only a minimum amount of material around any hole needing to be repaired or inserted.

What Tools do You Need to Fit a Time-Sert?


You will need a special set of tools for each size of Time-Sert you want to use. You can buy all the tools you need with a starter supply of Time-Serts in a ready made kit (pictured at left). You can only fit one diameter and type of thread insert with each kit. Usually the kit contains (1) a drill (of the correct size to drill out the hole to be repaired or  strengthened) - (2) a special tap to retap the hole to the right size for the Time-Sert - (3) a "counterbore" to cut a recessed lip which takes the flange of the Time-Sert - (4) an "insert driver" to screw the Time-Sert in and lock it in place and (5) a starter supply of Time-Serts (usually a quantity of 5).

How does a Time-Sert work?

First of all, to explain how Time-Serts work, you need to know that a Time-Sert has extra metal left in the bottom internal threads when it is made. This means the bottom inside threads are not fully formed. (You can see this  inside the black ring in the picture at left).

The cross-sectioned picture below illustrates how a Time-Sert is fitted and works.

___Insert Driver

      fluteless, roll forming tap


Insert driver tap

squeezes excess

metal out as it forms

the inside threads

Base Material

drilled, tapped

and counterbored

The yellow tool pictured above is the Time-Sert driver tool.  It is a fluteless, roll forming tap.  As it is screwed through the Time-Sert it roll forms the bottom internal threads that had extra metal left in them during manufacture.  This locks the Time-Sert into the "Base Material" by forcing the extra metal in these threads outwards.

< < LS Engine, 1115 & Special Kits

Your special Time-Sert  needs are in stock - LS engine & Gen 3,  M11x1.5 metric  Time-Sert 1115  for Toyota engine, Honda engine, also BMW engine, Ford engine, VW, Harley Davidson, Cummins, Detroit Diesel

Convenient Metric & Inch Range Kits

Time-Sert produces convenient boxed ranges of thread sizes as follows:

Metric Coarse & Fine Thread Ranges

Inch size Coarse & Fine Thread Ranges.

For size listing and further details go to:

crosstools time-sert range kits listing

A Time-Sert is the ideal repair for

Spark-plug holes and stripped oil

pan or sump threads.

How do I use the tools to fit a Time-Sert?

     (1)        (2)       (3)       (4)        (5)

(1) Drill with the drill supplied in the kit.

(2) Counterbore the hole with the tool supplied. This makes a recessed lip

      in the base material for the flange of the Time-Sert.

(3) Tap the hole with the special size tap supplied in the kit.

(4) Screw the insert in with the insert driver supplied until you have gone

      right through the insert and rolled formed the inside bottom threads.

(5) The Time-Sert will now be in place seated below the surface in the lip

       you made with the counterbore tool.

Your Remedy if You Need to go Bigger or You Have to

Fix a Stripped Helicoil or Time-Sert

Big-Sert Kits come in both metric and imperial sizes and contain all the tools you need to do a Big-Sert repair and usually 5 standard length Big-Serts.





Your second chance at thread repair.

Pictured on the left is the insert you can use if you've come across a threaded hole that's already been repaired with a Helicoil or Time-Sert and the "first time" repair has stripped out. Big-Serts are a thick walled version of Time-Serts. Kits are available with the necessary tools to do a Big-Sert repair in a range of popular thread sizes.

 © Copyright June 2015 - Cross Tools Co - not to be copied or stored  or reproduced  electronically by any means without written permission