Self drilling screw mainly used for fixing color steel tiles of steel structures, and can also be used for fixing thin plates of simple buildings.
Carbon Steel DIN7504K Hex Head Self Drilling Screw
Diameter：M4.2、M4.8、M5.5、M6.3
Carbon Steel Hex Head Self Drilling Screw is made of carbon steel, and the head is hexagonal. It has high hardness.
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