Self Tapping Screw is a kind of screw widely used in various industries and daily life. Here is a detailed introduction:
A self tapping screw is a special type of screw that has the ability to create its own thread when it is driven into a material, eliminating the need for pre - tapping or pre - drilling of threads.
It typically consists of a head, a shank, and a threaded portion. The head is designed to provide a means for driving the screw, such as a Phillips head, slotted head, or hex head. The shank is the main body of the screw, and the threaded portion is the part that cuts and forms the thread in the material as the screw is inserted.
When a self tapping screw is inserted into a material, the sharp threads on the screw start to cut into the material. As the screw is rotated and driven further into the material, the threads displace the material and form a matching thread in the hole. This process creates a tight and secure connection between the screw and the material.
Sheet Metal Screws: These are commonly used for fastening thin - gauge sheet metal. They have a relatively fine thread pitch and a sharp point to easily penetrate the metal. Sheet metal screws are widely used in the automotive, electronics, and construction industries for assembling metal components.
Drywall Screws: Specifically designed for attaching drywall panels to wooden or metal studs. They have a coarse thread and a bugle - shaped head that can be easily recessed into the drywall without damaging the surface. Drywall screws are essential in the construction of interior walls and ceilings.
Wood Screws: Used for joining wooden components. They come in various lengths and thread sizes depending on the application. Wood screws can have a plain shank or a tapered shank, and they provide a strong and durable connection in woodworking projects.
Time - Saving: The self - tapping feature eliminates the need for pre - drilling and tapping operations, which significantly reduces the installation time. This is especially beneficial in large - scale production processes or when working on construction sites.
Versatility: Self tapping screws can be used with a variety of materials, including metal, plastic, and wood. This makes them a popular choice for many different applications where different materials need to be joined together. Strong and Secure Connection: The threads formed by the self tapping screw provide a tight and secure fit, ensuring that the connected components remain firmly in place. This is crucial for the structural integrity of assemblies in various industries.
Standard: DIN7981, DIN7982, ASME, BS.etc
Material:
1.Stainless Steel: SUS201, SUS304, SUS316, SUS410
2.Carbon Steel: C1006, C1008, C1010, C1018, C1022, C10B21, C10B33, C1035, C1045, C435#, 40CrMo.
Diameter: M4, 5, 6, 8, 10, 12, 16, 18, 20, 24, 27 (3/16, 1/4, 5/16, 3/8, 1/2, 5/8 and 3/4-inch)
Length: 30mm to 200mm
3. Finish: polish plain, passivate, zinc plated, nickel, color.
4. Drive: ST2.2-ST6.3
5. Head type: pan, flat, round, oval, truss, hex, socket, button
6. Driver type: slotted, phillips, pozi-drive,indented hex, hex, socket, square, snake eye, socket pin, tri-wing, torq-set, torx, spline, polydrive, pentalobular, one-way
7. Thread type: AB, A, B, BP, C, D or 1, F, G,T, BF, BG or H, BZ or 25, U, Standard.
8. Packing: small boxes in carton then into pallet.
