الوصف

• Category: Self-tapping screws
• Application: particle board, particle board, wood board, between wood board and steel plate, etc.
• It is a kind of threaded fastener which is used to tap and drill the matched female thread in the pre-drilled hole of metal or non-metal material. Self-tapping nail materials can be divided into two types: carbon steel and stainless steel. Among them, the carbon steel material is mainly ***2 medium carbon steel. Usually used on doors, windows and iron sheets. The head is a bearing surface formed by an enlarged shape at one end. For thread forming and thread cutting self-tapping screws (self-tapping screws), Flat Countersunk, Oval Countersunk, Pan, Hex and Hex washer Head ) Is the most important. These five head types account for almost *0% of all self-tapping screws. The use of self-tapping screws (self-tapping screws) should be considered first.