Outer Limits 4x4 Board

I'm making a gearbox to transfer case adapter out of alloy.

Is it worth getting the case mounting studs helicoiled? If so how much does this usually cost?

The studs will be screwed into the adapter around 3/4 of an inch, but they are only 3/8 thick. Any thoughts.

Thanks
Simon

M12 x1.5 helicoil set cost me $96 which includes the tap and around 10 helicoils,not cheap but it will be stronger.

if the plates 3/4" thick i wouldn't bother with 3/8" bolts.
Rule of thumb 1 1/2 times diameter for ally? or 2 times either way you got tons of thread engagement

Stick to coase threads and should be fine, i always helicoil if its a part that will be regulary unbolted to prevent thread wear.

Wally

if you have access to a lathe would to get some m16 all thread and tap the size thread in it then tap your ali plate m16 and thread in with lok tight. i this to me dellow houseing where the slave cylinder is.
its a bit more work but cheaper than $96 for helicoils.

if you want i could help out with this. pm me and we can work some thing out.

lux kid wrote:if you have access to a lathe would to get some m16 all thread and tap the size thread in it then tap your ali plate m16 and thread in with lok tight. i this to me dellow houseing where the slave cylinder is.
its a bit more work but cheaper than $96 for helicoils.

if you want i could help out with this. pm me and we can work some thing out.

PM sent got mill?

or you could use keyinserts? they are solid unlike helicoils and have four little pins you smack in after installing and they work like scotch keying.

will a 15 meter 5 axis milling center do.

lux kid wrote:will a 15 meter 5 axis milling center do.

i reakon it might JUST fit.... you may have to take a bit of the end of the adapter, LOL