wafer head self drilling
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Truss Head Self Drilling Screw
The tail of the truss head self-drilling screw is drill-tailed or pointed-tailed, which does not require auxiliary processing. It can directly drill, tap and lock on the setting materials and foundation materials, which greatly saves construction time. Compared with ordinary screws, the self-drilling screws have higher toughness and maintaining force, and the long time after combination is not loose. The use, safe drilling and tapping are completed at one time, and the operation is simple.
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Phillips Round Collar Head Self-drilling And Tapping Screws
The drill tail screw is a kind of wood screw. The drill tail screw is a screw with a self-tapping drill head at the front end of the screw, also called a self-drilling screw. According to the different types of drill tails, it can be divided into: round head rice / cross / plum, countersunk head (flat head) / rice / cross / plum, hexagonal Huashi, round head Huasi (large flat head), trumpet head and so on.
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