Technical Help With Wheel Lug Bolts, 1974
- Thread starter fiatiowa74
- Start date
-
- Tags
- aftermarket bolt wheels
Currently reading:
Technical Help With Wheel Lug Bolts, 1974
Flat seat bolts compared to traditional tapered seat bolts.
Web search on "flat seat wheel bolts" or "fiat flat seat wheel bolts"
These look similar: https://wheelpartsdirect.com/products/bolts/484?gad_source=1
Others
https://www.google.co.uk/search?q=f...CBRAhGKABmAMJkgcEMjAuMqAH1aAB&sclient=gws-wiz
or
https://duckduckgo.com/?q=types+of+...yUyNTNBMg%22%7D&styp=entitydetails&ad_domain=
If you can't find exact replacement's on the critical seating dimensions then they look fairly straight forward for a machine shop to machine for you. As I assume you will required at least 8 (two wheels) then the a 'setter' will set an automatic lathe up to run off as many as your required.
It is a long time since I did any machine work but looking a your bolts hex bar stock will just be turned down to two diameter, lower threaded, upper smooth. The bolt flange would most probably be replaced by a washer. The bolt dome top would require extra machining but is not necessary.
Web search on "flat seat wheel bolts" or "fiat flat seat wheel bolts"
These look similar: https://wheelpartsdirect.com/products/bolts/484?gad_source=1
12x1.25mm Flat 50mm Thread 17mm Hex
Others
https://www.google.co.uk/search?q=f...CBRAhGKABmAMJkgcEMjAuMqAH1aAB&sclient=gws-wiz
or
https://duckduckgo.com/?q=types+of+...yUyNTNBMg%22%7D&styp=entitydetails&ad_domain=
If you can't find exact replacement's on the critical seating dimensions then they look fairly straight forward for a machine shop to machine for you. As I assume you will required at least 8 (two wheels) then the a 'setter' will set an automatic lathe up to run off as many as your required.
It is a long time since I did any machine work but looking a your bolts hex bar stock will just be turned down to two diameter, lower threaded, upper smooth. The bolt flange would most probably be replaced by a washer. The bolt dome top would require extra machining but is not necessary.
fiatiowa74
New member
Thank you for the useful information and links! Also appreciate the notes about using a machinist. Thanks!
I think we all struggle with our older Fiats.
I'm really struggling to find a water thermostat for my Strada/Ritmo Abarth 130TC. Many places list the actual part number (4360904) but actually they are not the same part in that there is an offset in the pipe tube settings. This has been confirmed by Italian specialist suppliers with them saying the exact original OEM part is no longer available or produced so they many places/manufacturers list the next nearest and claim compatibility.
On the 130TC near enough is not good enough. Frigging pain!
As for the wheels, they look suspiciously like Wolfrace Slot Mags, also fitted to a lot of British stuff in the 70s. I'd suspect they'd have Wolfrace cast or stamped somewhere so might be copies, but wheel bolts should be the same
fiatiowa74
New member
Thanks for the wheel manufacturer tip. They certainly look like Wolfrace.
