Originally Posted by
PutAwayWet
The screw diameter isn't a problem. What you need to check is the depth of the head against the countersink on the underside of your chassis. My L4 takes nice countersunk screws with heads that drive with a 5/32 hex. I bought them at Ace Hardware. My CRC takes a shallower head that only comes in Phillips drive, so far as I know. Hobby shop item, only. If I use the hex head screws on the CRC they stick out the bottom. The countersink is too shallow. I don't know what the head is like on the Traxxas screws, or whether the Corally has a deep or shallow countersink on the chassis. Or your chassis, for that matter.
http://www.lunsfordracing.com/mm5/merchant.mvc?
I have had a rev 4.5, a rev 5, and an 12L4. I bought some stainless steel 8-32 X 5/8ths screws. They had a 5/32nds hex head that was on the thick side. The 12L4 had a rather deep countersink, so everything sat flush. The rev's on the other hand have shallow countersinks in comparison. The solution?
http://www.lunsfordracing.com/mm5/merchant.mvc?
Lunsford's titanium screw heads are shallow enough to even sit below the chassis on the rev 5. And theyre available in several lengths. the 5/8ths are perfect for 12th scale and the 7/8ths will work well with the taller arm stack on the WGT cars (the speedmerchant ones at least)
Word to the wise . . .on the rev's you DEFINITELY don't want to run an aluminum screw into the CF in the front end.