Description
Model NO. |
DIN7504K |
Connection |
Common Bolt |
Head Style |
Hex Flange Head |
Samples |
Provide |
Features |
Good Anti-Corrosion Ability |
Materials |
Stainless Steel,Carbon Steel,Alloy steel |
Surface Treatment |
ZP(Yellow, White,Blue,Black),HDG,Black Oxide,Geome |
Thread & point |
Self tapping & Drill |
Other Name |
Self Drilling Screw |
Transport Package |
Box / Bulk Packing / Pallet |
Specification |
4.8-6.3mm |
Usage |
Building, Decoration, Construction, Window |
Origin |
China |
Delivery time |
15-25 days after we got TT payment |
Finish |
RAL Color Coating, Zinc Plated, Ruspert |
Payment term |
30%TT Balance TT and LC both ok |

Material standard |
C1022A/Q195/Q235/45#/55#/22A |
Diameter |
4.8-6.3mm |
Length |
19-75mm |
Head type |
Hex Flange Head |
Drive type |
Hex Flange Head |
Thread type |
Regular thread |
Point type |
Sharp or Drill |
Logo and Mark |
According to customer's requirement |
Delivery time |
15-25 days after we got TT payment |
Payment term |
30%TT Balance TT and LC both ok |
Packing |
Small bag or Small box/Carton/Pallet, Cartons Bulk/Pallet, Customized Packing Accepted. |
Feature |
Corrosion resistance, Precise dimension, easy to install |
Finish |
Grey/Black phosphated/White/Yellow Zinc Plated, Nickel Plated, Dacromet, Ruspert, Color Coating |
Application |
Building & Decoration, Industrial Aluminum Light Steel frame Construction, Door and Window Manufacturing, Wood Structure |

Roofing screws are made of hardened carbon steel or stainless steel. They can be used for metal,plastic and fiberglass roofing applications. Different screw points can be used for both metal and wood structures. All the roofing screws must have a sealing washer attached,which helps against water penetration. This is the most obvious character of them.
1.Strict quality control