Cross Recessed Countersunk Head Drywall Screw

Cross countersunk head screws are suitable for situations where the Screw head is not allowed to be exposed, but corresponding conical countersunk holes must be processed on the surface of parts with through holes. Commonly found in machinery, appliances and construction. It is used to join two connected parts. One part is made into a through hole and the other part is made into a threaded hole.
Cross countersunk head Self-tapping Screws are a type of Self-Tapping Screws. The head is a 90-degree cone with an H-shaped cross recess. The tail is the same as the GB845 pan head self-tapping screw. After installation, the countersunk head self-tapping screws are generally only inside the countersunk hole and are flush with the surface of the workpiece, which is more beautiful.
The connected parts are riveted with cross countersunk head self-tapping screws, which have strong bonding force, large pre-tightening force and high stability of the connected parts. GB846 self-tapping screws can drill the center hole by themselves during assembly, and with the help of adjacent threaded parts, they can self-tapping and extrude matching threads in the holes on the carrier.
The picture below is a cross countersunk head self-tapping screw made of stainless steel. The head is tapered with an H-shaped cross groove, and the tail is pointed.
Cross countersunk head self-tapping screws
When connecting with cross countersunk head self-tapping screws, first open a countersunk hole in the connected part, and then screw the self-tapping screw into the countersunk hole in the connected part. Since the thread surface hardness of self-tapping screws is high (≥HRC45), internal threads can be tapped in the threaded bottom holes of the connected parts to form connections.

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