Longer wheel lug bolts

[Bernard Littau]

I have some aftermarket wheels that are somewhat thicker at the lugs than
the stock wheels.  The stock lug bolts get around three threads into the hub
with these TSW wheels -- not enough.  I figure I need lug bolts around 0.5"
longer.  Where might I find such lug bolts?

Thanks,

Bernard Littau
Woodinville, WA
'88 5ktq