Common sense of screw teeth type - 99 percentages don’t know!

screwThere are many varieties of various types, including standard screws and non-standard screws. There are countless products that can be found. Many customers are purchasing screw fasteners and have different product requests. Some only know the product name, some indirectly inquiry through photos, and some send samples to confirm. It is extremely inconvenient to know that the environment of specifications and not detailed drawings is extremely inconvenient. On the one hand, it is necessary to confirm the detailed product when necessary, which will extend the delivery time of all products; on the other hand, it is necessary to frequently confirm the ability to ensure the accuracy of the data. Therefore, it is still extremely necessary to understand some simple fastener common sense for fasteners to negotiate fasteners. Here we introduce it.Screw tooth typevariety and their respective characteristics.

Common teeth types include: A-type teeth, AB-type teeth, T-type teeth, double-type teeth, tail-tail teeth, concave and convex teeth, 3-angle teeth

How to distinguish screw examples, and how to distinguish screw-free varieties from the practical products of screws, such as PB, KB, PA, PWB, etc., ordinary teeth like the M3, M5, etc., are all metric, and are they coarse or fine teeth?

The screw teeth are rarely used to be divided into machine teeth, and the screw thread teeth are probably machine teeth, self-tapping, wooden teeth, and iron plate teeth. They are divided from the type of screws; there are also points from the common usage standards in different countries: such as English machine teeth, American machine teeth, English self-tapping, American self-tapping, etc.M3Probably, the teeth of M5 are all metric. You must tell what the shape of the teeth are, such as machine teeth, or self-tapping, etc. If it is machine teeth, the distance between the teeth is generally a standard distance, that is, a coarse tooth. The coarse tooth of metric screws is a standard distance, which is just likeM3The specification of machine teeth is 0.5mm metric teeth distance refers to the spacing between two adjacent teeth peaks.Standard ribbedThere are standardized coarse teeth and fine teeth.