View Full Version : feedneck threads stripped want to helicoil!

12-02-2007, 12:53 PM
sups i got a spyder amg and the threads on the feedneck broke...i want to helicoil them for a good fix...i know the screws are m4x8 so i need to know what helicoils (aka thread inserts) i need and im very confused to distinguish what i need...(i.e) tap, inserts, etc...machinist lend me your knowledge!!!


12-02-2007, 01:00 PM
The heli-coil kits come with the coils, coil installer & tap for the coils to thread into.

You will drill the hole out bigger that the M4 so the tap can cut new threads into the body.

Give me a few minutes & Ill see if I can dig up a kit online.

12-02-2007, 01:04 PM
yes! thx man!

i know i found kits but i just didnt know what thread type to get...

12-02-2007, 01:10 PM
Heres what I found on http://www.mcmaster.com/

Type Helical
Tang Style With Tang
For Use With Metal
Application Thread Repair
Material Stainless Steel
Stainless Steel Type 18-8 Stainless Steel
Finish/Coating Plain
Threaded Type Right-Hand Threaded
System of Measurement Metric
Internal Thread Size M4
Internal Metric Pitch .7 mm
Insert Length 8 mm
Maximum Outside Diameter 5.60 mm
Specifications Met Not Rated

Standard Helical Inserts
Individual Inserts 91732A776 $4.90 per Pack of 10

Repair Kits 91732A943 55.47 per Kit

Screw-Lock Helical Inserts
Individual Inserts 90296A410 $4.20 per Pack of 10

I underlined the part numbers but Ill bet that your local hardware store will have them & if not they will order it for you.


Installation Tool

Extraction/Removal Tool

Tang Break-Off Tool

Straight Flute Plug-Style Tap

Bottoming Tap

12-02-2007, 01:11 PM
Thx Brraaah!!

12-02-2007, 01:12 PM
No problem. Anymore questions just ask. There is enough folks around here that any question will get answered pretty fast. Also Welcome to KUSA/SOC.

12-02-2007, 01:14 PM
u think you can link me the tool application tools...the tap and the tool for the coil itself plz!

12-02-2007, 01:31 PM
goto mcmasters site & in the search box on the left just type in the part numbers.

12-02-2007, 09:21 PM
thx again buddy! you made my day! haha

edit: do you know what the kit comes with?

12-03-2007, 04:49 PM
I hvent ordered anything like this from mcmaster so you may end up having to buy each tool & a pack of inserts. The kits we have at work have like 10 coils, tap & installer.