hex drill screw, stainless steel metal hex flange

It cannot be used for fixing metal with metal. 
There are two kinds of materials: iron and stainless steel, and stainless steel is also divided into many kinds of materials.Self drilling screw DIN 7504N pan head and Hex Washer Head Screws thickness plates depending on the screw diameter, Length from 19 mm up to 125 mm . Materials in 1022A and coating blue zinc plated, black zinc plated and white lacquered.Threaded Screw Bar Studs Rods, Hex Washer Head Self Drilling Screws, Self Tek Screw, Csk Head Self Tapping Wood Screw

Material:   steel c1022
Head Style:   HEX
Place of Origin:   handan city , China
Brand Name:   JK
Model Number: Self Drilling Screw
Standard:   DIN, ANSI
Product name: Hex Washer Head Roofing Screw
Head type:  Truss Head
Size:   #6-20 M3.5  #8-18 M4.2
Key words:   Self Drilling Screw With Rubber Washer
Advantage:   high quality,waterproof,custom
Type: Hex Washer Self Drilling Screw

FAQ
1.Why choose us?
We are specialized in Fasteners, with professional production and export experience, we can provide you with high-quality customer service.

2.What’s your main product?
We mainly produce and sell various self drilling and tapping screws,self drilling screws,drywall screws,chipboard screws,roofing screws,wood screws etc.

3.You are a manufacturing company or trading company?

We are a manufacturing company and export.

4.How long is your delivery time?
It is according to your quantity.Generally,it is about 30 days.

5.Do you provide free samples?
Yes, we provide free samples only.

6.What’s your payment terms?
Mostly we use 30% advance payment by T/T, 70% before shipment.