Topic: Need to know 2 bolt sizes

[winkster2005]

Hi everyone, 

     I need to helicoil two bolts. One of the 6mm alternator cover bolts and the 5mm bolt that holds the tach cable in. What I need to know is the thread coin for these two bolts.  Can anyone help?

Thanks in advance!

[evanphi]

thread pitch?

M6 is 1.00
M5 is 0.80

[strynboen]

think they are standart metric
(standart metric normal threds)
m5#0,8,, drill  4,2 mm=5-0,8=4,2
m6#1,0,, drill  5,0 mm=6-1  =5,0


for helicoil,, drill
m5 helicoil  must be 5,20mm,, drill
m6 helicoil  must be 6,30mm,, drill

[evanphi]

Out of curiosity, if you get a helicoil/timesert kit would they include the proper bit sizes?

[winkster2005]

Ok thanks guys!  And I have seen sets that include everything but it's been a while since I've bought one

[70CB750]

I bought a set like this one:

http://www.ebay.com/itm/131-pc-Stripped-Thread-Rethread-Helicoil-Repair-Kit-Metric-M5-M6-M8-M10-M12-/171446136721

because it was overall cheaper than just one size kit.

[Don R]

 That kit is less than one size at Carquest! I don't know about the quality but the price is good.