self drilling screw for metal roof

Specifications

High Quality Self Drilling Screw for Metal Roof, Screw for Steel Roof, and Drilling Screw.

High Quality Self Drilling Screw for Metal Roof /

Screw for Steel Roof  /

Drilling Screw

 

 

Self Drilling Screw for Metal Roof

Features:

1. Standard: DIN7504 SAE; J78;

2. Length: 19-250mm;

3. Dia.: 2.9-6.3mm;

 

4. Finishment:

1) white zinc, 2) yellow zinc, 3) blacking,

4) grey phosphor, 5) black phosphor, 6) gold brass,

7) plating nickel, 8) plating chrome, 9) electro phoresis,

10) darotized.

 

5.  Material: 20MNTiB;

6. Finish: galvanzied grey phosphor, galvanized blueness, dacrotized;

7. Head tpye: HWH,HFH,PAN HEAD,FLAT HEAD,BUGLE HEAD, and etc.

 

8. Apply to: steel frame, steel work, high buildig, multi-story building,

plant, highway, railway, and etc.

 

If you want to buy from us, please tell us following,

1. what finishment for screw,

2. hex size and type,

3. length of screw thread,

4. with washers or not,

5. color of zinc coated,

6. quantity of order,

7. special packaging,

8. other requirements.

 

Buy more, get more discount. 

 

 

Packaging: