Self Drilling Screws
Self-drilling screws can be identified by the drill bit shaped point of the screw and are designed for a variety of applications such as fastening metal to metal and metal to wood. Self-drilling screws do not require a pilot hole, which accelerates installation time and lowers the cost and need of additional drill bits. This extra functionality and cost saving feature makes self-drilling screws the clear choice for metal building construction. The drill points are numbers #1 through #5 and the amount of steel they can drill through increases as the numbered point increases. Typically, self-drilling screws are used in light gauge applications but a #5 drill point can drill through and fasten up 1/2" of steel. During installation, self-drilling screws will also tap threads to a degree.

Advantages
One-stop shopping; • professional and experienced engineers and strict QC and QA system • response within 24 hours
Have passed the quality authentication • large stock for standard size
Timely delivery • Supply Material and Test Reports;
Samples for free
Surface Treatment
Zinc plated, Nickle plated, Chrome plated, Passivation, Oxidation, Anodization, Black Oxide, Phosphatizing, Power Coating and Eletrophoresis, etc
Processing Equipment：
cold heading machine, threading machine, CNC machining center, CNC lathe, automatic lathe machine, conventional lathe machine, milling machine, drilling machine, grinding machine, etc


Certification:

ISO9001:2000, CE, RoHS,

Delivery,shipping & Serving：

Lead time: 5 working days for sample , 30 working days for bulk order.

Shipping: Ocean , Air, Express ( UPS , FEDEX, DHL, TNT)

Packing details：

Bulk packed in the 25kgs knited bags, then in Wooden cases.




FAQ

Q: Can you offer me sample?
A: Yes, we can offer you sample to test and check quality.

Q: How does your factory do regarding quality control?
A: We have professional QC team to inspect each items from the links of production to package.

Q: How about your delivery time?
A: Normally it will take 5-35 days after receiving your deposit.

Q: What is your payment term?
A: T/T,Western Union,L/C,and Paypal.This is negotiable.

Q: What is the shipping method?
A: It could be shipped by sea,by air or byUsage：
Widely used in the home and office appliance, communication equipments, ship assembly and other machinery industry, furniture, car and motorcycle repair and DIY inventions