How to Remove Rusted Toilet Seat Bolts Without Damage

The toilet seat’s purpose is to prevent you to see what’s inside the bowl, such as dirty water and urine. But, after using the toilet seat for a long time, the bolts and nuts may rust due to the water and the seat can also get fade and dirty.

For this reason, if you see a dirty seat after using it for a long time, it looks fleecy and strange, and it does not create a good hygiene environment in your toilet. So installing a new toilet seat is critical, mainly because it comes into daily contact with people.

But, it will be difficult for you to know how to remove the rusted bolts and nuts because most people use a wrench to apply enough force and tighten the bolts. However, don’t need to worry about that, there is a way to remove the rusted bolts without damaging your toilet by scratching or breaking it.

In this article, we will show you some removal processes that has no damaging condition to create. So keep reading the guide and check what we have discussed today.

Why toilet seat bolts and nuts get rust?Why toilet seat bolts and nuts get rust

Rust is formed due to an oxidation reaction in which iron reacts with water and oxygen to form hydrated iron (III) oxide. The presence of oxygen causes these electrons to rise and form hydroxyl ions (OH). The hydroxyl ions combine with the FE++ to form hydrous iron oxide (FeOH), also known as rust.

We always use water in the toilet, that knows everyone, and this is the main reason why all metals rust in the toilet. We can see the metal tap and shower tap get rust after using them for a long time because we use them to get water. The bolts and nuts in the toilet rust in the same way, and when we flush or clean the toilet with water, the bolts come into contact with water and rust.

Why removing rusted bolts is important?Why removing rusted bolts is important

Most people do not change the bolts and nuts for a long period. Rust is formed due to an oxidation reaction in which iron reacts with water and oxygen to form hydrated iron (III) oxide. As a result, rust can cause the bolt to freeze in place or degrade the shape of the bolt head or the nut that holds the bolt. If you try to back out the bolt or nut with a wrench, the wrench will not grip the hex head, making removal difficult.

In this case, you may need to take action to remove the bolts, which may cause damage to the other parts of the toilet. However, the rusted bolts and nuts cause damage to the rest of the toilet.

However, if you change the bolts and nuts before they become heavily rusted, you will not have any difficulty changing the bolts and nuts. Only with the right application you can easily replace the old bolts and nuts to set the new one.

What type of material bolts gets hard to rusty?What type of material bolts gets hard to rusty

Copper, brass, and bronze do not rust in the same way that aluminium does. Because all three contain negligible amounts of iron, no iron oxide, or rust can form. Copper oxide patina, also known as a greenish tint, protects the rest of the bolts from rust. 

Aluminium cannot rust because rust is iron oxide, and most aluminium has almost no iron in its composition. Painting, anodising, or any other surface treatment applied to the aluminium surface will protect it from a fracture attack.

Another option is a stainless steel screw, which will undoubtedly be the best rust-resistant bolt. The surface of these bolts is only covered with a rust-resistant coating, which will break down or wear off over time.

How to Remove Rusted Toilet Seat BoltsHow to Remove Rusted Toilet Seat Bolts Without Damage

Now we will tell you three easy processes that you can do by yourself no professional is needed here. Only you have to collect some important tools If you does not have that all.  

1. Remove bolts by penetrating oil, wrench and screw

Before beginning this process, apply penetrating oil to the rusted area. This penetrating oil will aid in reducing friction and loosening frozen or tight bolts and nuts. Wait 24 hours after adding the oil to loosen the nuts around the screws, and apply the oil every one or two hours during this time.

You can also use a bolt loosening spray, such as WD-40 Penetrant Spray to provide deep lubrication while loosening the nut or screw. After removing the rusty area, use a wrench to hold the nut in place from below, then insert your screwdriver into the top and turn it counterclockwise to unscrew the bolt.

If you find any difficulties to remove the nut at this time, add more penetrating oil to loosen the bolts and again wait for few hours. After doing this again, do the same process and remove the bolts without damage.

2. Cut the bolt by the hacksaw to remove

A hacksaw is a type of hand saw with extremely fine teeth designed specifically for cutting through metal. As a result, you can use this type of hand saw to easily saw through a nail or bolt for a clean, efficient cut.

Before beginning this procedure, wrap duct tape around the bolts on the upper side of the toilet to protect the porcelain from being scraped by the hacksaw.

After you’ve added the duct tape, place the hacksaw in the washer and begin moving it in, which will take some time. Take a break in the middle of this process to clean the cutting area, then repeat the process.

Always attempt to purchase an expensive-cost hacksaw with an expensive blade because a low-cost hacksaw’s blade can be broken due to a rusty surface.

3. Remove the bolts by the bolt cutter

When bolts rust or have damaged threads, removing them can be a laborious and time-consuming task. So a better option is to use an elevator bucket bolt cutter, which will assist you in safely and quickly removing bolts and making it much easier to cut them off.

Select a long-handled bolt cutter and position the bolts between the blades. Squeeze the bolt cutters’ grips together until they cut through the rusted bolts.

4 toilet maintenance tips to prevent the bolts and nuts from getting rusty4 toilet maintenance tips to prevent the bolts and nuts from getting rusty

Here we have discussed four maintenance tips that will prevent the bolts and nuts from getting rusty and keep your toilet clean and hygienic. So check the tips and follow them as we describe.

Tip 1: Don’t clean toilet with water

Do not use water to clean the toilet. Try a different liquid, such as Lysol, which will not cause rust on metal bolts. Lysol’s toilet bowl cleaner can thus be used to remove stains as well as water rings. Lysol kills 99.9% of viruses and bacteria, and it is easy to transport and will not rust steel like soap and water.

On the other hand, always try to avoid spilling water on the toilet’s hardware, and if water does get stuck to the toilet, try to wipe it off regularly. So finally, if you clean the toilet with Lysol and wipe the sticking water your toilet bolts and other material parts will protect from rust.

Tip 2: Use rubber nuts and a washer

To tighten the toilet seat, use rubber nuts and washers because rusting occurs only due to oxidation, and plastic does not react like the metal surface to create oxidation. As a result, the plastic will not rust and will be easy to remove with light force.

At first when you are buying a new toilet you may find free bolts, nuts and washers and that will be metal. But our advice is if you find metal bolts, nuts and washers neglect them to use instead of buying some rubber nuts and washers separately and applying them with the metal bolts.

Tip 3: Make sure dry environment in the toilet

Rusting does not occur in dry air; however, it does occur in moist air and water. The dry zone, which houses the toilet and vanity, is the most frequently used bathroom area. As a result, try to keep your toilet environment dry.

Tip 4: Use oil penetration

Rusting is the most dangerous enemy of metals used in mechanical parts. But penetrating oils are an excellent option for protecting metal surfaces from corrosion because they form a protective barrier against rust.

Actually, moisture cannot react with the iron in the metal for their coating of oil, so they leave a lubricant behind to keep things moving and help prevent rust from forming. Apply oil penetration, particularly in the metal areas of the toilet.


  • Question: How much should you tighten toilet bolts?

Answer: I can’t tell you how tight to turn them, but don’t over tighten or the toilet will crack. As a general rule, try a turn or two on each side until you feel resistance, then wiggle the toilet bowl slightly.

  • Question: What size wrench do you need to remove a toilet?

Answer: If the bolts are metal, you may be able to unscrew the nuts with pliers, but a socket wrench with a deep-well socket is the best tool for the job. A 1/2-inch socket is required for most toilet seats.

  • Question: Is it difficult to change a toilet?

Answer: Replacing a toilet is a big job, but it’s not as difficult as you might think. The most difficult tasks are usually selecting a new toilet and removing the old one.

  • Question: How often should you replace your toilets?

Answer: Although your toilet may last for up to 50 years, you will need to replace it when it wears out. However, you should replace your toilet seat every five years at the very least.


Removing the rusty bolts is not difficult to work if you do it properly no damage will occur. Only arrange the proper tools that will be needed and try to collect brand products. We hope you will do it properly by yourself and don’t need to hire any plumber after reading our guide.

Now, those are the procedure you can Remove the Rusted Toilet Seat Bolts Without Damage. 

Did we miss anything? Anything else we could have add? Please do let us know in the comment section. 

How To Replace a Rusted Toilet Seat- In 5 Minutes or Less! If you ever wanted to know how to remove your old rusted toilet bolts and install toilet seat then in this video I’m going to show you how this can e simply done without call your local plumber and this could save you hundreds of dollars;

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