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Grub screws on Henntec track tensioners - size?

Posted: Wed Nov 18, 2015 1:49 am
by atcttge
I seem to have destroyed one of the grub screws on my Henntec track tensioner of my M1. Wot is the size of the grub screws?

Re: Grub screws on Henntec track tensioners - size?

Posted: Wed Nov 18, 2015 2:18 am
by jarndice
Hi, All the "GRUB" screws on all the axles and idlers as well as the sprockets of all my TAIGEN and HENG LONG TANKS are M3/3mm, you are going to need the length as well as the thread size if you are about to order replacements.
They are extraordinarily cheap on E-BAY.
shaun

Re: Grub screws on Henntec track tensioners - size?

Posted: Wed Nov 18, 2015 5:55 am
by atcttge
Thanks but I am asking for the screws found on the Henntec track tensioner.

Specially the screw that locks the idler arm to the track tensioner housing.

Re: Grub screws on Henntec track tensioners - size?

Posted: Wed Nov 18, 2015 4:00 pm
by 971wright
I If you have a good ironmonger near you try there . My local shop sells allsorts of bolts and screws. bought 200 3mm bolts for £4 worth checking. By the time you find them on ebay the postage would pay for a large amount of screws.


regards pete

Re: Grub screws on Henntec track tensioners - size?

Posted: Thu Nov 19, 2015 5:11 am
by atcttge
Alas, I couldn't get the grub screw free. My allen screw driver has stripped away the metal so now it just spins freely and the grub screw is well and still stuck. :(

Re: Grub screws on Henntec track tensioners - size?

Posted: Thu Nov 19, 2015 6:49 am
by atcttge
Kiaser wrote:Easy grab your screw driver and ca glue and glue it in clean the screw driver later :thumbup:
I did that already. Didn't work. The screw driver broke away. I even used Milliput and let cure overnight. Screwdriver was stuck in the grub screw like a rock. When I started to loosen the screw, driver broke off again with the screw not even budging.

Re: Grub screws on Henntec track tensioners - size?

Posted: Thu Nov 19, 2015 10:23 pm
by atcttge
Thanks I'll try that out when u have the right tool.

Re: Grub screws on Henntec track tensioners - size?

Posted: Fri Nov 20, 2015 7:25 am
by Guido Henn
Hello,

this are 4mm ( thread ) screws,the right tool is what you can see in the link

http://images.google.de/imgres?imgurl=h ... rQMIrQEwLg

If i can help you,feel free to send a mail to: henntec@gmx.de

regards Guido

Re: Grub screws on Henntec track tensioners - size?

Posted: Fri Nov 20, 2015 10:09 am
by atcttge
Hi Guido. Thanks. I got the right tool, just that all that tensioning stripped the inside of the grub screw so now my tool can't lock into the hex.

I'll be ordering a new track tension set next month when funding becomes available. I'll send you a PM around that time for that. :)

Re: Grub screws on Henntec track tensioners - size?

Posted: Fri Nov 20, 2015 5:28 pm
by jarndice
I bought two tool sets a few years ago and have never regretted either purchase,
They are a "DRAPERS" Tap & Die set (part number 21TDS) and a "ROLSON" Tap & Die set (M1.0 - to M2.2) and between both sets I have got nearly every size in our hobby covered,
If I am fitting new suspension to a Tank I always chase the thread for the Grub screws first, trust me it will save bad language later. :{
I can make threads, but more importantly I can CLEAN threads,
Worth every penny.
shaun.