Aluminum tends to stick to screw threads unless you're careful.
Some manufacturers claim their aluminum is strong enough the threaded inserts aren't necessary. That could be true.
R.
and you will cry when you remove your bolt and the threads come with it, or the bolt/fastener breaks. you should helicoil, or the thread insert type of your choice, on ALL threads in aluminum that are mated with dissimilar fasteners [in this instance, the fasteners will almost always be a steel alloy type] that are under pressure, will be frequently removed for "x" reason[s], or where you want to maintain a consistent torque value[s]. just something i learned in my 42 1/2yr+ career as a machinist. i have used helicoils, timeserts, keenserts, and variations thereof, in sizes from 2-56 [those are a LOT of fun to install !] through 1 1/2, plus pipe threads to 2". lots of guys get away without using these inserts, but i have repaired way more than that because thread inserts were NOT used. just my experience and opinion, your mileage may vary.......
