Try Paul Hill. Hill engineering, He's a sponsor and sells lug bolts with his spacer sets. He probably would ship just the bolts. They're nice I had some when I had a 348.
From my personal archive.... ============================ As I wrote previously, >Just heard from my shop... I now need 20 longer lug bolts. A friend will also need 20 bolts too. I'm told that they must be "14mm x 1.5mm thread pitch, conehead, and 2.5 inches long". We just discovered that when using Speedline Challenge wheels on a 355 (or 348 for that matter), the stock bolts aren't long enough for the wheel -- there is only a 1/4" holding the bolt on, instead of the 1/2" for the stock street wheels. Doh. Actual 355 Challenge cars use a stud/nut solution. Would the longer bolt from the late-offset 348 work? I'd probably rather go with a generic bolt solution (need not be OEM Ferrari, nor that pretty, for that matter), as I understand that these Ferrari bolts are $$$$$. ___________ ***THANKS*** to all who responded -- much appreciated! I was about to try getting a set from custom fastener sources, but thanks to Bob Zino, who suggested checking with H&R, and Jamie Troutman and Steve Magnusson, who provided a link to ECS tuning, which is an H&R dealer, I think this problem is solved. http://www.ecstuning.com/HR/appguides/app_search.cgi?make=Ferrari&qt=studbolt&model=F355&submit=Search%21&thread=Choose+Thread http://www.ecstuning.com/HR/support/how_to_mesure.html I ordered a set of new H&R lug bolts (HR141560FER, 60mm, M14x1.5 ) from ECS, for $4.95 apiece (plus shipping), in lieu of the ~$70 or so that Ferrari charges PER BOLT. vty, --Dennis
Good deal!! I think site sponsor Hill engineering does the stock size bolts. Don't know about customs. Sounds like you got it handled.
If you check the sites I listed, I think you'll find lug bolts in all lengths, including the equivalent of 348 SS/Spider rear bolts.... Hope this helps! vty, --Dennis