Hex Head Self Drilling Screw
Hex head self-drilling screws enable drilling without first creating a pilot hole. These screws are usually used to join materials like sheet metal.
· Material: C1022 with hardened.
· Standard: ISO15480, DIN7504.
· Head type: hex washer head, hex flange head.
· Finish: white/yellow/blue zinc coated, hot-dipped galvanized, zinc-nickel alloy coating, black oxidized.
· Assembling: steel bonded washer, stainless steel bonded washer, PVC washer, stainless steel hex cap, umbrella-type washer, nylon cap.
· Diameter: 3.5mm – 6.3mm.
· Length: 13mm – 200mm.
Features
· Made of hardened carbon steel, the screws offer strong pullout strength to hold the roofing sheets.
· Sealing washers help against water penetration.
· Commonly with corrosion coating.
· Different points for different applications.
· Sharp points for easy to screw in and damage a little.
· Drill points for screw-in hard metal structure.
· Various colors of paint on heads for specific applications.
· Can be drilled near the edge of roofing sheets.
· Long life service.We can also negotiate according to the customer’s requirements.