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Screw in nose pads
Screw in nose pads are nose pads that attach to the eyeglasses frame by means of a small screw called a nose pad screw.
Titanium nose pads shown in a screw-in mount

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Close up of the nose pad at the screw box
Screw in nose pad mounted on the frame
The nose pad shown in the picture to the left is mounted by a small screw called the nose pad screw. The screw box is the area where the nose pad base or screw hole section of the nose pad inserts into the frame so that you can mount the nose pads with the small screw.  Most common screw boxes appear like the one shown in the pictures here.  Although there are square screw boxes, and open end screw boxes.  Below is what the screw box looks like when the nose pads are dismounted from the frame. 
Close up of screw box for screw-in nose pads
Screw-in screw box
Screw box shown with nose pad and screw taken off.
Close up of the nose pad screw shown mounted with nose pad.
     As you can see in the above photos, the screw box is concave with a hole that runs through the middle of it where the nose pad screw holds the nose pad in place.  Also you can see a picture where the nose pad has just been removed and you can see the base of the nose pad where the screw hole is.
As we mentioned above, the nose pad screw needs to be long enough to reach the second screw hole in the screw box in order to properly mount the nose pad.  In the picture above, you will see a close up of the screw in place and how the screw comes out the other end of the screw box.  This appearance is quite normal, as you would need to pass through the second screw hole in the screw box to gain proper hold.  
8mm titanium screw-in nose pad in gold color
9mm HD silicone screw-in nose pad
11mm HD silicone screw-in nose pad
13mm HD Teardrop silicone screw-in nose pad
It's easy to tell if this is the mount type for you just by looking where the nose pads attach and determining if there is a screw present(shown in the photo below).  
These nose pad screws are usually 1.0mm in diameter and around 4mm in length. There are a few nose pad screws out there at different lengths(usually shorter) and caution should be used when getting one shorter than a 4mm length due to the average size of modern screw boxes.
Nose Pad Removal for screw-in nose pads
     When changing the nose pads with a screw in mount, all you need to do the work is a couple of items.  Here we have a small list of tools that can be used, but not imperative that every tool be used.  

  • optician screwdriver or precision screwdriver(flat head or philips)
  • Replacement nose pad screws (only if necessary)
  • Lens protector or soft cloth
  • A steady hand
Insertion of Screw in nose pads
     When inserting the nose pads, it is just the opposite of removing them.  You must prepare your work area by protecting the lens as mentioned in the removal process.  Take the new nose pad and insert the base of the nose pad into the screw box so that the hole from the base of  the nose pad aligns with the holes in the screw box.  You may need to hold the pad from falling out of the screw box while placing the nose pad screw into the hole.  This will require the use of both hands.  Check out the example in the photo below.  In most cases you may be able get the nose pad screw to align and set into place so that you can let go of the screw and grab the screwdriver so that you may tighten the screw into place.  However sometimes you may need to jostle the screw until it sets into place.  Now even though the screw falls into place, it is important that the screw is positioned straight.  If the nose pad screw is not straight, you may find yourself turning and turning the screwdriver, trying to get the screw tight, when the end of the screw is not aligning with the screw hole at the other end of the screw box.  When straight, the screw will tighten.  
Troubleshooting with a screw in mount nose pad
     Even though the idea of changing a nose pad seems quite simple, there can be obstacles in the way that makes a simple task seem frustrating or more time consuming than first anticipated.  Here are some examples;
Just click on a problem listed below that relates to your situation to read more on it.

  • Cannot take out old screw

   Screw holes of the nose pad don't align with screw box
As you can see, the tools listed above relate differently to each user. For the experienced optician, you may trust just your steady hand and the screwdriver. For someone who is attempting this first hand, a soft cloth or lens protector will come in quite handy in addition to the screwdriver. Even the experienced hand can slip and scratch an eyeglass lens. So please use caution and prepare your work area for the task at hand.  

  We will assume that most of you will not have a lens protector available, therefore we will show an example of a setup for both lens protector and soft cloth. For the soft cloth, use anything that will withstand an accidental thrust of a screwdriver blade and that will also not be abrasive to the lens it is protecting. We suggest using a folded microfiber cleaning cloth as it is very soft, and when folded a couple of times over, this should prove to protect the lens. If you do not have a microfiber cleaning cloth available, you can use a soft cotton cloth as this should prove not to be abrasive against the lens. If no cotton cloth is available, see if you have a clean cotton shirt that can be your assistant for a couple of minutes.  
  Start by folding the cloth or protective material a couple of folds over as shown in the photo. Now the cloth will need to rest on the lens, so we suggest tucking a little under the nose pad arm so that you do not have to hold it in place while trying to remove the nose pad screw. Now that you have the cloth in position, it should look similar to the photo on the left. Grab your screwdriver and start to loosen the nose pad screw by turning counterclockwise. The screw should turn with a very little torque. However, in some cases, the screw is very tight.  

  If the screw is very tight and is difficult to remove, you need to add more pressure to the screw before attempting to turn the screw. Trying to loosen the screw without adding more pressure against the screw can strip the head of the screw making it very difficult, if not impossible to remove without means of drilling it out. It is also important to turn the screw slowly as you apply adequate pressure against the screw. The reason this is important is that when insufficient pressure is used against the screw, you can turn the screw over the head which can tear the head up and allow less for the screwdriver to grab a hold of.  

  Now that you have successfully removed the nose pad screw, we suggest inspecting the head for a lot of wear. Also check to see if the screw itself is still straight and not bent. A bent nose pad screw will be difficult to get back in and you'd be better off changing the nose pad screw than trying to reinsert it. Also any really worn head of a screw will be difficult to tighten and even for removal(if needed) in the future. Now you are ready to mount new replacement nose pads on your frame. 
Optician's screwdriver
Fish shape Lens Protector
Find these in our Store!
Microfiber lens Cloths
Microfiber cloth folded and tucked under the nose pad arm.
Screwdriver loosening the nose pad screw
 Let's look at the situation where the holes of the nose pad do not align with the holes of a screw box. Most common reason for this is the fact that a small piece of the nose pad base may have broken off and remained in the screw box when removing the nose pad. This is usually the case when a nose pad has broken off and there appears to be nothing left. One can assume that the screw box is empty, when it may actually have the curved back of the nose pad base behind the screw. It may also appear that there is nothing inside the screw box as we look to see if this is the case. So to make sure that the cavity is empty, take a small flat head screwdriver and place the tip on either top or bottom of the screw box. Then with a scooping motion, try to remove the hard piece that is inside. Depending on where the piece broke depends on how easy it is to remove.It may take a couple trys, but you should be able to remove the piece.​
Screw loosened and ready to come out.
Flat Head tip nose pad screws
Soft Pvc teardrop shaped nose pad with silver screw-in insert.
Replacement nose pad cannot be fully inserted into screw box.  Must be an obstruction.
Soft Plastic single mold nose pad.
Plastic Asymmetrical nose pad with gold colored screw in insert.
Soft Pvc nose pad with gold colored screw-in insert.
Red silicone oval nose pad.
13mm logic silicone nose pads.
Broken nose pad base in screw box behind nose pad screw.
This shows the nose pad base where the screw hole is broken.
Look Closely!!  You can see the broken piece from the nose pad in the screw box.
Saddle strap nose pads in screw-in mount.
Nose Pads need slip cover!  Or do they??
     On rare occasions, the following will happen to one's eyeglasses;
screwdriver blade taking out broken piece left in screw box.
Silicone tearing off of the nose pad base.
Silicone nose pad that has ripped off of the nose pad base.  Now looks like a slip cover.
Silicone nose pad completely removed from nose pad base.
     What is shown in the photo above is the tearing of a silicone mold from the polycarbonate base that it was molded together with during the manufacturing process.  What appears to look like two separate pieces is actually a two piece mold being torn apart.  One may mistake this as a piece that requires a slip over nose pad, yet when you look at the nose pad arm, you will see the screw.  This indicates that the nose pads needed for replacement on this particular eyeglass frame would be the screw-in mount nose pads.  Even though the slip over nose pads do exist, they are designed to fit entirely over existing nose pads and not the hard nose pad base.  The example shown here is for the oval shaped 13mm screw in silicone nose pad.  Different size and shaped silicone nose pads will have different size and shaped nose pad bases for their molds. 

     NOTE:  Only the silicone material nose pads have thin large bases that are transparent in appearance.  Other harder material nose pads are either single molds or small base two piece molds.

     When trying to find replacement nose pads for a silicone piece that has ripped apart, measure the length of that silicone piece in order to find the approximate size needed for your eyeglass frame.
Wave pads in Black silicone
Purple Polycarbonate nose pads
Saddle strap High arch with silver nose pad base.
Silicone teardrop nose pad with silver screw in insert.
Orange colored polycarbonate nose pad.