Active Member
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[China]
Address: Rongda Industrial Park, Xinhua Road, Wangting Town, Suzhou City, China
Contact name:
Suzhou Crever Fastener Co., Ltd |
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Black Square Torx Drive Self Tapping Screws Flat Countersunk Head Fully Threaded 100mm
1. Descriptions:
Self-tapping screws drill their own holes when they’re screwed into materials such as wood, plastic and metal. By using a screwdriver to attach a self-tapping screw, you can create precisely fitted threads. They're ideal for combining two different types of materials or for screwing in areas where access is only one-sided. It’s helpful to use self-tapping screws for products that need to be maintained regularly, such as air-conditioning units or canopies, where you need to dissemble and reassemble the item along the same threads.
A long-lasting solution to prevent stripping is to install a metal insert in the material from the start. Then you could regularly fasten and unfasten with an appropriate-size screw without damaging the material. The inserts are shaped to minimize stress, and they expand as the screw enters.
Self-tapping screws come in all sizes and tip types, and they have various shaped heads. When you choose the right size self-tapping screw, you should take into account the length of the screw tip, according to the material’s thickness. There must be enough space for the tip of the drilled screw to fully enter the material before the threading begins. Otherwise the driving in of the screw will cause thread stripping and the end result won’t be properly secure.
2. Specifications:
1. Name: DIN7982 flat head/countersunk head self tapping screws, sheet metal screws
2. Grade: C1018, C1022, SUS201,SUS304,SUS316,A2-70,A2-80,A4-80
3. Size: 2.2mmx10mm--6.3x100mm
4. Standard: DIN7982
5. Certification: ISO9001, SGS, CTI, ROHS
Product Name | DIN7982 flat head self tapping screws |
Material | stainless steel, carbon steel, alloy steel |
Color | yellow zinc, black phosphate, gray, white zinc, HDG, ruspert,
nickel and so on |
Standard | DIN GB ISO JIS BA ANSI |
Grade | C1018, C1022, SUS201, SUS304, SUS316, A2-70, A2-80, A4-80, 4.8 6.8
8.8 10.9 12.9 |
Brand | Crever Or customer own brand |
Thread | full thread, partical thread |
Used | building industry machinery, decration, eletronical industry, wood
and so on |
3. Applications:
Building,Automobile Industry,Furniture,Sanitary,Electronics,Traffic.Hig way. In general, countersunk head screw refers to the mechanical thread screw.The biggest characteristic is the countersunk head screw, screw head can sink below the surface, not like a normal screw is out, it can keep the surface smooth, tighten state at the same time it carry the load is bigger than other screw carry the load if it is used in a hard object, it need to sink holes in the corresponding position.In addition, countersunk head screw if playing on metal, to be tapping in advance.
4. Features:
While similar to a machine screw in many respects, a self-tapping machine screw, differs in that the lower portion of the shank is designed to carve threads as the screw is driven into an untapped hole. This feature gives the self-tapping screw the advantage over a self-drilling screw as new threads are not cut should the screw be re-installed. Self-tapping screws are available in many different drive styles, head styles, and types, each offering its own benefits. Some of the types AFT offers are Type AB, Type A, Type B, and Type F self-tapping screws
5. More pictures:
DIN7982 CSK head cross recess self tapping screw
