Part Number Help - Studs for Floor Heat Shield (Insulator) that fit Nut 90179-06161

[Tyland Cruiser]

Does anyone know know whether there is a part number for the studs that fit the nut that is Part No. 90179-06161? I assume this is a non-serviceable stud in most of its applications (floor heat shields (insulators), rear heater pipes, fuel lines, etc.). I'm wondering if there is a part number for this stud, as I have some corroded studs for the floor heat insulators.

If these studs are not readily available as a Toyota part, does any one have any suggestions on how to address/replace these studs? Screen shot below shows the use of the nuts for these studs with the floor heat insulators.

Thank you for any assistance.

 

[OGBeno]

Studs are not a service part.

 

[Kernal]

^^^This^^^.

The original small studs appear (IME) to have been permanently attached (?welded) to the floor when the vehicle was manufactured.

One possible solution would be to first mark the exact location of the old stud ie: with a punch or drill bit (so it will line up with the holes in the heat shield) then clean/grind off that area enough so that you could attach a new base-type stud using two part epoxy or tack weld (prime and paint any bare sheet metal of course). Or, drill a hole through the sheet metal (floor) and push the appropriate length stud through the hole from above (inside, under the carpet), then epoxy or weld in place. If you used these base-type studs you could pick your own stud size/thread pitch with a corresponding nut to match (or just go with the original size, M6 or M8?).


Here's a list of base studs to choose from:

McMaster-Carr

McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.

www.mcmaster.com

Example:

FWIW there are also adhesive backed base studs (3M VHB tape) but they don't have a very high heat rating so might not last very long in that area.

 

[Tyland Cruiser]

^^^This^^^.

The original small studs appear (IME) to have been permanently attached (?welded) to the floor when the vehicle was manufactured.

One possible solution would be to first mark the exact location of the old stud ie: with a punch or drill bit (so it will line up with the holes in the heat shield) then clean/grind off that area enough so that you could attach a new base-type stud using two part epoxy or tack weld (prime and paint any bare sheet metal of course). Or, drill a hole through the sheet metal (floor) and push the appropriate length stud through the hole from above (inside, under the carpet), then epoxy or weld in place. If you used these base-type studs you could pick your own stud size/thread pitch with a corresponding nut to match (or just go with the original size, M6 or M8?).


Here's a list of base studs to choose from:

McMaster-Carr

McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.

www.mcmaster.com

Example:

View attachment 3885951

View attachment 3885952



FWIW there are also adhesive backed base studs (3M VHB tape) but they don't have a very high heat rating so might not last very long in that area.

Thank you. This is most helpful and confirms my suspicion that these studs are not easily replaceable. Glad to know it can be done, though.

 

[Tyland Cruiser]

Studs are not a service part.

Thank you for confirming. As always, really appreciate the helpful replies!

 

[Gerrha]

I just saw your post and since it was months ago, you have probably moved on, but some of those welded studs you mentioned are still available. If you look at the front panel and floor member drawing you will find them. The Number-3 heat shield towards the front mounts to 2 brackets that are also welded underneath. Even those brackets are still available.

In my case, there are 4-5 retainers welded under the cargo area that allow attachment of the tie-down hooks that are back there. Sadly, those retainers are NLA so I will need to come up with an alternative plan for attaching those hooks since my retainers are all rusted out.