Our staff are usually in the spirit of “continuous improvement and excellence”, and while using the top-quality high-quality items, favorable value and superior after-sales services, we try to acquire each and every customer’s belief for OEM Factory for China Factory Supply Hardend Countersunk Head Self Drilling Screws, “Change for the greater!” is our slogan, which means “A greater entire world is before us, so let’s love it!” Change for your greater! Are you all set?
Our staff are usually in the spirit of “continuous improvement and excellence”, and while using the top-quality high-quality items, favorable value and superior after-sales services, we try to acquire each and every customer’s belief for China Screws, Drywall Screw, Our goods are produced with the best raw materials. Every moment, we constantly improve the production programme. In order to ensure better quality and service, we have been focusing on the production process. We have now got high praise by partner. We’re looking forward to establishing business relationship with you.

Product Name:self-drilling screw
Material:stainless steel/carbon steel.
Color:sliver/black/zinc
Standard: DIN ISO JIS GB ANSI ASME BSW
Grade:A2-70/A4-80/4.8/8.8/12.8
Package:
1. We have several sizes of packing dimensions, can be 20kg or 25kg per carton;
2. For large orders, we can design specific sizes of boxes and cartons;
3. Normal Packing: 1000pcs/500pcs/250pcs per small box. then small boxes into cartons.
4. Can provide special packings as clients requests;
Features:
 1. We supply credible products with high quality in timely delivery.
 2.All of our products are inspected by QC before packing
 3.Standard export package or according to your requirements.
How are self drilling screws measured?
They are measured from the top of the head to the tip. Hex and hex washer head screws and bolts, 
although flat on the top and the bottom, are measured from the bottom of the head. From that point 
to the tip is the length of the screw. Self drilling screws are measured all the way to the end of the 
drill point tip.
Do you need a pilot hole for self drilling screws?
While self-tapping screws will tap a hole into a soft material, self-drilling screws are capable of drilling 
a hole into anything from metal to wood. This key difference is self-drilling screws have a tip like a 
drill bit, so they do not need a pilot hole.
What is the difference between self drilling and self tapping screws?

Our staff are usually in the spirit of “continuous improvement and excellence”, and while using the top-quality high-quality items, favorable value and superior after-sales services, we try to acquire each and every customer’s belief for OEM Factory for China Factory Supply Hardend Countersunk Head Self Drilling Screws, “Change for the greater!” is our slogan, which means “A greater entire world is before us, so let’s love it!” Change for your greater! Are you all set?
OEM Factory for China Screws, Drywall Screw, Our goods are produced with the best raw materials. Every moment, we constantly improve the production programme. In order to ensure better quality and service, we have been focusing on the production process. We have now got high praise by partner. We’re looking forward to establishing business relationship with you.