Replacement Standoff Nut for Stromberg Carlson RV Exterior and Bunk Ladders - Qty 1

Part Number: FST-9975

67 Reviews | 8 Questions

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$10.30

Retail:$23.99

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stromberg carlson accessories and parts hardware fst-9975

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Replaces the nut on 1 standoff for your Stromberg Carlson exterior or bunk RV ladder. Fits Stromberg Carlson exterior RV ladder (LA-401) and Stromberg Carlson RV bunk ladders (LA-460 and LA-466). 1-800-940-8924 to order Stromberg Carlson accessories and parts part number FST-9975 or order online at etrailer.com. Free expert support on all Stromberg Carlson products. Great prices and Fastest Shipping for Replacement Standoff Nut for Stromberg Carlson RV Exterior and Bunk Ladders - Qty 1. Accessories and Parts reviews from real customers.

Stromberg Carlson Accessories and Parts - FST-9975

Replaces the nut on 1 standoff for your Stromberg Carlson exterior or bunk RV ladder. Fits Stromberg Carlson exterior RV ladder (LA-401) and Stromberg Carlson RV bunk ladders (LA-460 and LA-466).

Features:

Replaces the nut on 1 standoff for your Stromberg Carlson RV ladder
Fits Stromberg Carlson exterior RV ladder (LA-401) and Stromberg Carlson RV bunk ladders (LA-460 and LA-466)
Includes 1 nut

Fits:

Stromberg Carlson exterior RV ladder: LA-401
Stromberg Carlson RV bunk ladders: LA-460 and LA-466

FST-9975 Stromberg Carlson Replacement Standoff Nut for Exterior RV Ladders and RV Bunk Ladders - Qty 1

Video of Replacement Standoff Nut for Stromberg Carlson RV Exterior and Bunk Ladders - Qty 1

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Demo Stromberg Carlson Replacement Standoff Nut FST 9975

Review of Stromberg Carlson Replacement Standoff Nut - FST-9975

Video Transcript for Review of Stromberg Carlson Replacement Standoff Nut - FST-9975

Hi, neighbors and friends, Steven here with etrailer.com. Today we're looking at a replacement standoff nut for your Stromberg Carlson RV exterior and bunk ladders. Now folks, this does replace the nut on one standoff for your RV's Stromberg Carlson Ladder. As you can see, it's threaded inside. That's the bottom. It's got the little ridges and everything to help hold it in place.

Now again, you're gonna get one nut with purchase. And I'll throw up on the screen the different ladders that this works with. The LA-401, that would be your exterior ones, and the RV bunk ladders LA-460 and LA-466. Again, folks, you're getting quantity one, one replacement standoff nut. I'm Steven, thanks for watchin', and have a great day.

Customer Satisfaction Score:

98% were satisfied with this product

2% of customers were not satisfied

4.7

67 reviews

5 Stars		(55)
4 Stars		(9)
3 Stars		(1)
2 Stars		(1)
1 Star		(1)

by: Fyremedic5 03/09/2019

Have been looking for these insert nuts for quite sometime to repair my boat windshield support mounts. Even specialized fastener companies were not familiar this item. I just so happened to come across these insert nuts for RV ladders and stand-off mounts! I thought a tube is a tube, whether it be on a boat or RV, and I was right. I ordered 4 of them so that I could go ahead and replace all of the old ones before they completely fail, as they are about to. Here is the first one done. The only negative issue I had was that one of the rings fell off of each of the nuts as they were being inserted into the tube. One was the bottom one and the other was the top. However, the one ring seems to be holding fine right now. I included some pictures to include the model of the windshield mount in the event others are having a similar issue.

Click to Enlarge

Fyremedic5 One Year Later

3/10/2020

Still holding after a year of harsh marine environment on the boat.

by: Robert 09/29/2026

This is what I needed, I don't like the price.

by: Linda 09/03/2026

Good stuff

by: Mary 08/11/2026

Great online experience. Communication of the status was so helpful. Everything came as expected and on time. Thank you!

by: Philip 08/20/2021 One Year Later

I repaired my 5th wheel ladder a year ago and the replacement/repair part is holding up very well. A good part to have in your trailer tool box if you use your ladder frequently

by: Larry 07/19/2018

Extremely happy with etrailer. I ordered two star nuts to repair our RV ladder. Order was filled promptly. One of the nuts bottom star popped off and could not be used. Upon receiving an rating form from etrailer, I explained my disappointment in one of the products being defective. Within one hour etrailer replied and stated they would refund cost of one or send new one to replace. I asked them to send a new one. They sent two instead so I would have a spare! Outstanding customer service!

by: John H 07/23/2020 One Year Later

Used this product to repair an RV ladder. I didn't even know the name of the part when I started looking, but I found it and etrailer had it . The ladder is still solid, so what more could I ask?

by: Robert vose 01/30/2017

It looks like it is the proper part it does fit the I'd , have not installed on ladder yet.Good price and did not charge more for shipping than the part cost as other on line stores dis

by: Carlos 01/21/2013

This product should be made entirely out of Stainless Steel...specially when is used on exterior RV ladders. Typically rust and break in the middle of nowhere and no access to roof.

by: Excellent Service 07/20/2015

I received my order quickly and accurately. The parts fit easily into the rear step that I had to repair. I will use and recommend ETrailer to everyone.

by: David 07/23/2018

I bought a motor home with a broken ladder extension. It needed a really weird nut that locked inside the tube. I found what I thought might be the right part on etrailer.com and it came in a day or two and voila! It was the right part. First thing that went right on this albatro . . . . I mean motor home.

by: Jason 03/18/2018

Money well spent! We drug our ladder upon exit of a RV park.I hesitated to fix it until i found these at etrailer.They were easy to install and got my ladder back to new.

by: Dreamcatcher 07/28/2016

The nut was a direct replacement for that that rusted out on my 1997 RV and delivery was fast. BUT, don't just buy the nut, because the bolt doesn't come out of the old one. For a couple $$ more, buy the hole standoff, and don't get frustrated like I did.

by: Alex 06/05/2018

Item was correct for the ladder I needed to install. However, I had to tap out the hole for the bolt to work. The threads were not complete to properly screw the mounting bolt. This is due to a machinery quality issue. If I did not have a tap and die set this item would not have worked. But after I chased the threads no problems worked like a champ. If I had not had to do this I would rated it Excellent.
Delivery as promised and a decent price. I am happy and would recommend.

by: Pat 08/22/2025

Order was exactly as needed and arrived as scheduled.

by: Chris 09/23/2021

Finding small parts is difficult in this throw-a-way world, but I found the part I needed on eTrailer.. Fix it vs buy a new ladder when the old one is still in great shape. Now I can fix it.

by: Dave C 01/27/2014

Received my order this past week. I've ordered from your site a couple of times and have found that finding and ordering items is an easy process. Been very happy with all my transactions with you guys!

by: J Or 01/31/2023 One Year Later

It was a direct form, fit, function replacement. It corrected the problem I was having with a set that wore out.

by: Matt 07/13/2025

Looks like it should work fine.

by: Ken 04/14/2018

Hard item for me to find. Thanks etrailer. com for coming through with the item I needed.

by: Steve O 07/03/2018

Exactly what i needed.
Fair price for part and shipping.

by: Ron K. 08/20/2013

This product made the ladder on the outside of the motorhome sturdy and reliable again. It was easy to instale and had no problem with it. Thank You for an easy fix.

by: Bill W. 10/18/2016 One Year Later

Was so simple to repair my RV ladder when I used the insert nut.

by: Ronald 02/28/2013

The product worked great my rv ladder is secure and tight.
The shipment was on time and all of your products are excellent.

by: Pat D. 10/23/2017

Rv ladder needs repair these replacement nut made for a strong and safe ladder once again

true

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See what our Experts say about this Stromberg Carlson Accessories and Parts

Do you have a question about this Accessories and Part?

How Does Replacement Stand-Off or Insert Nut for Stromberg Carlson RV Ladder FST-9975 Install
The Replacement Stand-Off Nut # FST-9975 can usually just be inserted into the tube using a screw driver or socket to place it in the tube. If you can't get it all the way in then using a block of wood to tap it further into place is the best option. We do not have a video that shows this process at this time.
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Installation of Replacement Stand-Off or Insert Nut for Stromberg Carlson RV Ladder FST-9975
Yes, the replacement stand-off/insert nut # FST-9975 fits either exterior RV ladder # LA-401 or the RV bunk ladder # LA-460 or # LA-466 by being inserted into the end of the stand-off.
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Replacement Air Conditioner Shroud and Ladder Parts for an RV
We may have replacement parts available for you depending on the manufacturer and model of your ladder and AC unit. Stand-off nut # FST-9975 measures 1" x 1" and was designed for use with Stromberg Carlson ladder # LA-401. For a 5" ladder support leg, there is # 8535, which will work with any exterior RV ladder that has 1" round tubing, as well replacement ladder rung # 8538-T. When it comes to the shroud, the part which may work for you is # AT3308046006, which is a replacement white...
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Is Stromberg Carlson Replacement Standoff Nut Difficult to Readjust
No worries, it's definitely better to know what you're getting into rather than just winging it! The Standoff Nut # FST-9975 that comes already inserted into the tube of the Replacement Standoff # SPN-416 is designed to "bite" into the tubing itself so you get a secure setup. This means it will be pretty difficult to move by hand which I tried doing myself. You'll either need to use a hammer and a type of punch or some other way to seat that standoff nut further into the tube.
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How Far Does Replacement Standoff Nut Install Into Ladder
You want to install the Replacement Standoff Nut # FST-9975 far enough that you can put the ends in place, but not so far that the screw/bolt can't reach it. There isn't an exact science to it so you'll just need to use your best judgement.
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Thread Size and Type for Replacement Stand-Off or Insert Nut for Stromberg Carlson RV Ladder
I went out to the warehouse and pulled Replacement Stand-Off or Insert Nut # FST-9975 to measure it. The inner diameter is 0.209 inches (5.32mm). The thread depth is approximately 1/4 inch and there are 5 threads so that would be 20 threads per inch. It is a coarse thread.
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Stand-Off or Insert Nuts for Stromberg Carlson Ladder Rack
We have replacement stand-off or insert nuts for RV ladders but none that are made specifically for a motor home as each piece of hardware used on motor homes is not available in a data base. If by chance you have an aftermarket ladder, the Stromberg Carlson RV Exterior Ladder # LA-401 or # LA-401BA then we do have the Replacement Stand-Off or Insert Nut for Stromberg Carlson RV Ladder # FST-9975. This also works with their Bunk Ladders # LA-460 and # LA-466. This replacement nut is about...
view full answer...
Installing Replacement Stand-Off Nut # FST-9975
The Replacement Stand-Off Nut # FST-9975 can usually just be inserted into the tube using a screw driver or socket like you mentioned. If you can't get it all the way in then using a block of wood to tap it further into place is the best option. We do not currently have the replacement screws available as a replacement part.
view full answer...

Do you have a question about this Accessories and Part?

Info for this part was:

Expert Research:

Michael H

Expert Research:

Jameson C

Expert Research:

Adam R

Installed by:

Steven C

Updated by:

Mary K

Updated by:

Mike S

Updated by:

Michael B

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