Hex Flange Head #5 Point Fine Thread Self-Drilling Roofing Screw. Suitable for External Heavy Duty Steel-To-Steel applications. Usually for fixing metal decks to thick structural steel or bar joists. The unique Moon-Cut and Spiral Thread-Cut design help remove excessive steel dust & metal chips to achieve smooth drilling performance.

Its special design of the end of the drill bit allows the drill end screw to integrate the three functions of "drilling", "tapping" and "locking" at the same time. Drilling screws can greatly reduce the operation process, and are often used in construction, decoration, roof, glass and other fields, so drilling screws are also known as window screws and roof screws.

Applicable to the following ranges:
A: Stainless steel, steel plate, galvanized steel plate, engineering installation. B: Indoor and outdoor installation of metal curtain wall, metal light partition, plastic steel doors and windows, etc.
C: Combination installation of ordinary angle steel, channel steel, iron plate and other metal materials (steel structure installation).
D: Car compartments, container cabinets, shipbuilding, refrigeration equipment, environmental engineering and other assembly projects.
Welcome friends in the industry to inquire, all products are produced by the factory, strictly control the quality standards, and have obtained the qualification certification of international certification bodies, ISO9001, ANAB, SGS, to provide customers with safe, stable and effective products.

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