The thread on the screw of the self tapping screw is the special thread of the self tapping screw. It is mainly used to connect and fasten two thinner metal components, but small holes need to be made in advance. Due to the high hardness of this screw, it can be directly screwed into the holes of metal components to form corresponding internal threads in the components. This kind of connection belongs to detachable connection, which can also be removed in the later stage. Materials include carbon steel and stainless steel, slotted or cross grooved round head, countersunk head, semi countersunk head self tapping screw, etc. Self tapping screws can be driven in with a screwdriver, gun drill or electric hammer. Generally, electric hammer is required when driving into concrete. In daily life, the most commonly use is to punch holes with an electric screwdriver and then install the screws. It is a relatively simple installation method.
| Item | DIN7981 standard wood chip board cross countersunk self drilling screws phillips tapping chipboard screws | |||
Finish | black, Zinc, plain, black oxide, galvanize | |||
Material | C1022,C10B21 | |||
| Model number | DIN7505 | |||
Measurement system | Metric | |||
Brand name | Zhuocheng | |||
Standard | DIN7982 | |||
Surface treatment | zinc,yellow zinc, black | |||
Size | M4-M6 | |||
| Length | 100-400mm | |||
Certificate | ISO9001-2008 | |||
Sample | Provided | |||
Service | Provided | |||
Single packaging size | 25*25*16CM | |||
Singe gross weight | 25kg | |||
Package type | (1)Small box packging | |||
(2)25-30kgs/ctn in bulk, 36-48cartons/pallet | ||||
(3)Assortment in poly bag or plastic box | ||||
Delivery time | Quantity | Delivery time | ||
1-1000pcs | 3 days | |||
1001-5000pcs | 7 days | |||
5001-10000pcs | 9 days | |||
>10000pcs | To be negotiated | |||




Wuxi Zhuocheng Mechanical Components Co., Ltd. is established in 1993, and one group of manufacturing and selling professional fastener , and often make DIN, ANSI, BS, ISO, JIS standard and high quality and professional fastener products in industrial fields, also have a professional quality control in development, process and manufacturing of various non-standard fastener. At present we develop 10,000 kinds of non-standard fasteners. We have a long-term business cooperation relationship with many well-known multinational companies, and provide an OEM service for the middle- big business enterprise. The products have already exported to the Unite States, Germany, England, Canada, Italy, Japanese etc.









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◉ You are a manufacturing company or trading company?
---We are a metal alloy manufacturing and we have years of export experience. we have a reasonable price.
◉ What quote do you offer?
---FOB , CIF and others ways according to your needs.
◉ How pay?
---All of kinds Payment we all accept from you
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---Sea Freight, Air Freight and others Express Delivery ways for you.
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---Of course,you can.
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---Yes, we can print logo for you.
◉ What is the quality of your products guarantee?
---We have passed ISO9001:2008 Quality Management System Certification, CQM Quality Management System Certification and IQNet Quality Management System Certification, If the quality doesn't accord with the standard, you can exchange the goods for free.
◉ Do you have after-sales service?
---Certainly,you can contact us at any time. Contacting info: You can contact with us by email
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They are all manufactured according to the strictest international standards. Our products have received favor from both domestic and foreign markets.
They are now widely exporting to 200 countries.
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