Color Painted Hex Washer Head Self Drilling Screw , Roofing Screws , With EPDM Metal Bonded Washer (RAL)

Product Name:self  drilling screw

Head:hex,csk and  pan head

Diameter: 3.5mm-6.3mm(#6-#14)

Length: 11mm-200mm

Coating: Zinc,Phosphated
Material: C1022

Self-drilling screws mainly has three advantages as following:

Firstly, Self-drilling screws can save labor. Drilling hole, forming mating thread and clamping home can achieve in an easy operation. It doesnt require for difficult alignment of two or more elements.

Secondly, self-drilling screws can save materials. It only needs one tool for application---screw drive. Power drills, drill bits and elaborate and costly press tools and their maintenance are eliminated.

Finally, self-drilling screws can improve product quality. It ensures correct hole size every time, resulting in better thread engagement and tighter clamp.

Hexagon washer head drilling screws with tapping screws thread
1) standard:EN ISO15480(DIN7504K)
2) Length:13mm-254mm(1/2"-10)

1) material:Carbon Steel C1022 OR 1018 

2) Finish:Zinc Plated  Painting Dacromat

3) Size:#6 #7 #8 #10 #12#14

4) Dia:3.5mm-6.3mm

5) Length:13mm-300mm

6) Standard:IFI DIN UNI

7) Adrantayes:Good Quality LaryeProductionCapacity  Tinely delivery Competitive price

Hexagon washer head drilling screws with tapping screws thread
1) standard:EN ISO15480(DIN7504K)
2) Length:13mm-254mm(1/2"-10)

1) material:Carbon Steel C1022 OR 1018 

2) Finish:Zinc Plated  Painting Dacromat

3) Size:#6 #7 #8 #10 #12#14

4) Dia:3.5mm-6.3mm

5) Length:13mm-300mm

6) Standard:IFI DIN UNI

7) Adrantayes:Good Quality LaryeProductionCapacity  Tinely delivery Competitive price