self drilling screws hex washer head - alibaba.com
Hex Washer Head Self-Drilling Roofing Screw With EPDM 1) Name: Hex Washer Head Self-Drilling Roofing Screw With EPDM 2) Standard: DIN 3) Material: carbon steel 4) Size: 5.5x25--6.3x51mm 5) Diameter: 5.5-6.3mm, as required 6) Length: 25-51mm,as required 7) Slot: no 8) Head: hex washer head 9) Thread: coarse,UNC, UNF 10) Point: drilling/sharp 11) Finish: zp, with/without head painted 12) …
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