(Everything about Pan Head Screws
There are different types of pan head screws. Such screws vary by size, length, material, standards.
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Screw Sizes.
There is a wide array of diameters of pan head screws. The diameter varies from M1.6 to M56. Most popular sizes are M1.6, M3, M4, M6, M10, M20, M30, M48, M56. Sizes in inches are the following: 1/4 inch - 3 inches. Short screws are commonly used to bond metal and plastic surfaces or some parts, longer screws - for wood. Also you may use self-drilling tek screws for wood and steel. By length pan head screw may vary from 3мм to 300мм.
Screw materials.
The most common material of screws is stainless steel. For the production of stainless steel screws are used the following steel types: 201,302,304,316. Less common steel material is carbon steel 4.8S.
Also you can find brass pan head screws. These screws are often used for decorative purposes in small quantities as their production is expensive.
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The most rare screws are titanium pan head screws. Titanium screws have a low weight, high strength and do not rust. The price of titanium pan screws is respectively the highest.
If you are looking for very light screws, then the best choice is a nylon pan head screw (pc, pvc, pe). They do not rust, but have a drawback - low strength.
Screw standards.
There are a lot of screw standards for different countries. The most popular standards are:
- ISO9001:2000
- GB67, DIN85, DIN923, ISO1580
- DIN, IFI, ASTM
- ISO, DIN,ANSI, BS, JIS, UNI
Good luck in finding the right pan head screws.
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