Self-drilling Screw Introduction Self drilling screw which means that, in addition to the tap-like flute in the leading threads, there is also a preliminary drill-like fluted tip that looks much like the tip of a center drill. These screws combine a thrilling-like action and the fastener installation itself into only one driving motion (instead of separate drilling, tapping, and installing motions); they are thus very efficient in a variety of hard-substrate applications, from assembly lines to roofing. Self drilling screws have a drill-bit point to enable drilling into metal without first creating a pilot hole.They are available in all shapes,sizes and numerous different head types.
Payment: Payment Way: T/T, Western union... Payment terms: usually 30% deposit should be paid when placing the order, balance payment should be paid off before shipment. Sample: Free sample with our stock product for customers quality check. Lead time for the sample usually is 3-7 days, but for some special samples, it will take longer time, about 10-15 days, please confirm with us. Packing: Packing by 25kg or 50kg bags or carton then put on the pallet Delivery: Delivery: By air, by sea or by express service OEM Service: customized services according to the samples and drawings offered. Simple progress as below: 1. Customer provide drawing or sample 2.Produce sample 3. Customer confirm samples 4. Produce bulk goods FAQ 1. What is your minimum quantity for the product? A: No minimum quantity for stock product usually. 2.Do you produce standard or non standard screws? A: We have regular production for ANSI, DIN, GB... standard screws, while we also make customized screws as your drawing. 3.How about your delivery time? A: Generally speaking, if the goods is in stock, we can delivery them with 3-7 days. If the quantity is 1-2 containers, 30-45 days can be offered. 4.When I can contact you or send inquiry? A: Any time you can contact us, we will reply you within 24 hours. If you have another question, ease feel free to contact us.