You don't have to be a licensed plumber to install a toilet seat. It's easy!
Typically, the most difficult job of replacing a seat is removing the old one, but with a standard wrench, a screwdriver and a spray can of WD-40® penetrating oil, you'll find it quite easy.
To remove your old seat, loosen the hinge with a screwdriver or wrench. Remember your tools are steel and your bowl is porcelain, so be careful not to chip it. If the bolts are rusty or badly calcified, spray them with WD-40. Let them sit for five or ten minutes and then try again. If they still won't budge, you might want to consider calling a professional.
Next, refer to the installation instructions included with your toilet seat or use the links below.
Your common toilet seat is usually very basic and easy to install.

View the NextStep® with STA-TITE® instruction guide or watch the video:
If you have a standard Easy•Clean & Change™ hinge, you can follow these 4 simple steps to install your toilet seat. Also, You can view the Easy•Clean & Change™ instruction sheet in English, Spanish and French.

Install Bolt.
Put bolt through bowl, screw-in nut.

Unlock Hinge.
Turn hinge cap to the left.

Attach Seat.
Press unlocked seat hinges onto bolts.

Lock Hinge.
Turn hinge cap to the right.
View the Easy•Clean & Change installation video.
If you have a Easy•Clean & Change™ Hinge with Sta-Tite®, you can follow these simple steps to install your toilet seat.
Also, You can view the Easy•Clean & Change with Sta-Tite® instruction sheet in English, Spanish and French.

Unlock Hinge Caps.
Twist hinge cap to the left.

Click Bolt Into Hinge.
Put bolt head into the hinge until you hear a click.

Lock Hinge Caps.
Twist hinge cap to the right to lock bolt into hinge.

Place Toilet Seat
on Bowl. Place bolt through bowl mounting holes.

Center Toilet Seat.
Hold the toilet seat center throughout the process.

Install Sta-Tite® Nut.
Hand-tighten first.

Break Sta-Tite® Nut.
Tighten Sta-Tite® Nut with wrentch until bottom breaks off.
View the Easy•Clean & Change with Sta-Tite® installation video.
If you have a metal hinge with Sta-Tite, you can follow these 6 simple steps to install your toilet seat. Also, You can view the Residential Sta-Tite® Metal Hinges instruction sheet in English, Spanish and French.

Thread the bolt into the hinge.

Push the bushing all the way up bolt until it's flush with the hinge.

Place toilet seat bolts into toilet bowl.

Finger-tighten Sta-Tite® nut onto bolts.

Align toilet seat onto bowl and use a 1/2" wrench to tight bolt.

Bolt head will snap off when the precise tightness is reached.
If you have a pre-threaded metal hinge, you can follow these 6 simple steps to install your toilet seat. Also, You can view the Residential Sta-Tite Metal Hinges instruction sheet in English, Spanish and French.

Thread the bolt into the hinge.

Push the bushing all the way up bolt until it's flush with the hinge.

Place toilet seat bolts into toilet bowl.

Finger-tighten Sta-Tite nut onto bolts.

Align toilet seat onto bowl and use a 1/2" wrench to tight bolt.

Bolt head will snap off when the precise tightness is reached.