Self-drilling screws, also known as “drill screws,” “self-drilling screws,” or “dovetail screws,” are classified into different types based on their application, material, and shape.
A standard 6mm self-drilling screw has a flatness of 9.38mm or 9.8mm. A hexagonal self-drilling screw with dimensions 4.5*14*25 means the screw size is 4.5mm, the screw length is 25mm, and the thread length is 14mm.
1. Self-drilling screws, also known as “drill screws,” “self-drilling screws,” or “dovetail screws,” are classified into different types based on their application, material, and shape.
2. Based on material, they can be divided into: 1022A steel, 410 stainless steel, and 304 stainless steel.
3. This type of screw has a self-drilling tip, named for its resemblance to a twist drill bit. During assembly, the screw drills its own center hole and then, with the help of the adjacent threaded portion, self-tapping to create a matching thread within the hole on the carrier. Therefore, it is called a self-drilling, self-tapping screw.
Hebei Wotu Fastener Manufacturing Co., Ltd., a manufacturer of hexagonal self-drilling screws, relies on technology and talent for steady development. We continuously update and improve our products, cooperate sincerely with customers, and provide comprehensive after-sales service. Please feel free to contact us if you have any needs.
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A bolt manufacturer should be evaluated against a defined joint, drawing and acceptance plan—not a product list or unit price alone. Buyers need to verify whether the supplier can manufacture the required geometry, control material and heat-treatment requirements where applicable, manage threads and coatings as one dimensional system, inspect critical characteristics, preserve batch traceability and […]
