You can rest assured to buy customized M4 M2 70mm Stainless Steel A2-70 A4-80 DIN7504K Hex Flange Head Self Drilling Screw from us. We look forward to cooperating with you, if you want to know more, you can consult us now, we will reply to you in time!

M4 M2 70mm Stainless Steel A2-70 A4-80 DIN7504K Hex Flange Head Self Drilling Screw

Self-drilling screw with tapping screw is a kind of screw, with a bit through a dedicated electric tool construction, drilling, tapping, fixed, a complete lock, self-drilling screw with tapping screw sheet is mainly used in some parts of connection and fixed, such as choi steel connection with choi steel, color steel plate and purlin, wall beam connections, etc., its penetration is generally not more than 6 mm, not more than 12 mm;

Self-drilling and tapping screws are often exposed outdoors and have strong corrosion resistance. The rubber sealing ring can ensure that the screw is impervious to water and has good corrosion resistance;

Usage: it is a kind of screw, mainly used for fixing color steel tile of steel structure, also can be used for fixing sheet of simple building. It cannot be used for metal-to-metal bonding. Material has iron, stainless steel two kinds.

Models: φ 4.2/ φ 4.8/ φ 5.5/ φ 6.3mm, the specific length can be negotiated according to requirements.

According to the different drill tail can be divided into: round head rice/cross/plum blossom, countersink head (flat head)/rice/cross/plum blossom, hexagonal hua Si, round head Hua Si (large flat head), horn head

Production Process

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Quality is guaranteed : Durability testing and critical technical design to enhance fasteners lifetime.

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