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The normal metric thread for screws on handles is M4.
In normal usage conditions handles should not peel within the normal useful life period.
Depending on the finish, it is necessary to bear in mind that electrolytes (nickel and chromium plating) remain more unchanged over time than paint (aluminium paint).
Depending on the production process for electrolyte handles, they are given a metal layer on the surface and in the case of paint finishes, only paint.
The use of cleaning products or degreasers on handles can damage or change the surface finish, making it more sensitive to rusting and deterioration.
In order to change the handles on a piece of furniture for other new ones, it is necessary to take into consideration the measurements of the holes in order to make the most of them. With single hole handles, it is simple and you can choose any model as it will coincide. If, on the contrary, you have more than one hole, you have to measure from centre to centre of the hole. This measurement is what will determine the handle that you need in order to be able to easily install it without having to drill new holes.
Check that the measurement is a multiple of 32mm, as they are normally 32, 64, 96, 128, 160, 192, etc. If that is not the case, it will be necessary to have a special handle measure or cover up the holes of the previous handle with a product designed for that purpose.
You need to bear in mind possible marks that have been created over time. A handle provides doors with a new look and it is a great solution for adding a new touch to a piece of furniture for a very low cost
In order to install a handle or a knob it is necessary to have a drill with a drill bit for wood or metal depending on the material of the door. Also, you will need screws suitable for the thickness of the door, which must completely go through it in order to screw into the handle a bit.
On the contrary, if you want to replace a handle with another new one that matches in terms of drilling measurements, it is sufficient to use a screwdriver.
If the screw is for use in self-screwing wood, it is necessary to measure the thickness of the door in order to not go through it and to mark the back of it.
Fitting a handle is very simple, you simply need to screw in a screw that is normally metric 4 screw thread, through the back of the drawer of the door. The screw must be sufficiently long in order to go through the thickness of the drawer or the door, and then also to screw into the handle in order for it to be fastened. Bear in mind that with drawers you will sometimes find them to be double the thickness.
The main difference between a handle and a knob is their shape, which is normally linked to the number of holes. Knobs have a more compact form and only one hole, although there are some that have a second hole in order to fasten their position and prevent turning. On the contrary, handles are usually longer and normally have a minimum of 2 holes, depending on their size.
In order to fit a recessed or built-in handle onto a drawer or on a door it is necessary to carry out prior machining and in some cases you can avail of a drill.
In the event that it is circular, you will find cutters for use with a drill, therefore you will not need as a specific a tool as a milling machine. You will easily find different different diameters, therefore it is necessary to focus on the mounting diameter and you will have to see if the recessed handle has enough overhang in order to cover up possible marks that may be produced on the edge. In the event that there is very little overhang and you are afraid that it will be seen, especially with post-formed or melamine, use well-sharpened cutters in order to prevent this situation.
In the case of handles with shapes, it is indeed necessary to use a milling machine and the cutter most appropriate for the embedding to carry out.
Once the handle has been embedded in, the time comes to secure it. Some handles come provided with a little hole in order to be able to screw it at the inner sides and at other times they have holes through them. Another option is to fasten them with a kind of contact adhesive.
Above all, it is important tat you bear in mind the depth to be embedded and the thickness of the door, using a stop in order not to mark the inner side of the door.
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