Self-tapping screws, in simple terms, are screws that can fasten two objects without requiring pre-threaded holes or matching nuts. Common self-tapping screws are categorized into sharp-tail and flat-tail types. Sharp-tail self-tapping screws are suitable for materials without pre-drilled holes, or with cracks, and where the material hardness is relatively soft, such as plastic, wood, and aluminum profiles. Flat-tail self-tapping screws are used for fastening materials with pre-drilled holes.
       Self-tapping screw head types can be manufactured as: GB845 pan head self-tapping, DIN7981 pan head self-tapping, GB846 countersunk head self-tapping, GB70, DIN912, DIN7984 socket head cap (hex socket), large flat head (mushroom head), hex head, etc.
Common materials: iron, stainless steel,

        Our company specializes in the production and sales of various stainless steel screws, combination screws, set screws, grub screws, electronic screws, machine screws, self-tapping screws, custom non-standard screw processing, and provides corresponding distribution services.
Welcome to inquire and purchase with drawings or samples!!

Specific head types and models:

PA pan head cross self-tapping, PB pan head cross flat-tail self-tapping, round head cross with washer self-tapping PWA, round head cross with washer flat-tail self-tapping PWB, round head self-tapping for electronics, toy small screws
KA flat head/countersunk head self-tapping, KB flat head/countersunk head cut-tail self-tapping, KM flat head/countersunk head machine thread, commonly used small screws for electrical appliance factories, instrument factories, electronic factories, toy factories,
Large flat head, B head, round head, all available in stock, please contact~!