Durable Hexalobular Flat Head Self Tapping Screws

As a trusted fastener supplier, Xiaoguo® offers Durable Hexalobular Flat Head Self Tapping Screws for bulk wholesale and direct purchase. These screws have significant advantages in steel structures and sheet metal processing by completing drilling, tapping, and locking in one step, ensuring a perfectly smooth surface after installation.

Installation of color steel tile roof

Align the 6-lobe countersunk self-drilling screw with the corrugation and use an impact wrench. The drill bit will penetrate the steel plate and the purlin, and the threads will then lock in place.

Advantages: Eliminates the need for pre-drilling process, doubles the installation speed; The dovetail groove does not slip; After countersunk screws are tightened, they are flush with the roof surface, and will not damage the waterproof layer.

Assembly of the enclosures of distribution boxes and control cabinets

Simply insert the self-drilling nails through the panel and screw them into the frame. The drill bit only takes 1-2 seconds to penetrate the thin steel plate.

Advantages: Reduces processes. One worker can complete the entire cabinet assembly with just one gun; The6‑Lobe drill bit will not slip out, making it suitable for assembly line operations; The countersink ensures the flatness of the cabinet's outer surface, without affecting powder coating and labeling.

Ventilation duct connection

Simply screw it in directly using a drill bit. The drill tip is sharp, and the iron sheet will not be deformed.

Advantages: Durable Hexalobular flat head self‑tapping screws can be easily removed at any time, making maintenance convenient; the countersunk heads do not protrude, and the inner wall of the duct is smooth, reducing air resistance; the dovetail grooves can withstand high torque, ensuring a secure and non-loose connection.

Suggestions for extending the usage time

The Durable Hexalobular Flat Head Self Tapping Screws, although equipped with a drill tail, have their lifespan directly affected by the installation method. Here are some suggestions for extending the lifespan of the product.

Choose the right type of drill tail

For thin plates with a thickness of ≤ 2 mm, standard drill shanks are used; for thick plates with a thickness of 3–6 mm, extended drill shanks are employed.

Using the wrong drill shank can lead to overheating and wear of the drill shank, as well as premature dulling.

When drilling through stainless steel or high-strength steel, it is necessary to use drill bits with special coatings, or reduce the rotational speed and apply stable pressure.

Control the rotational speed and pressure

During drilling, high-speed rotation generates high temperatures. If the rotational speed is too fast or the pressure is too high, the temperature of the drill bit will exceed the tempering temperature of the steel, resulting in a decrease in hardness and a dulling of the drill bit.

It is recommended to use a variable-speed impact wrench.

Remove the debris from the drill holes

When drilling with a self-drilling bit, a small amount of iron filings will be produced. Use compressed air to blow away the iron filings from the drill tail and the threads.

Do not reuse the self-drilling nails.

The Durable Hexalobular flat head self‑tapping screws tail will wear out during the first drilling. It is recommended to use it only once and not to reuse it.