THE PREMIUM SELF-DRILLING SCREWS USE FOR TILE SHARPED ROOF STEEL

THE PREMIUM SELF-DRILLING SCREWS USE FOR TILE SHARPED ROOF STEEL

  • Material: Specific hardened steel.
  • Head type: Hexagon (soket 8 mm).
  • Thread diameter: #12 gauge (5.5 mm).
  • Thread type: Double thread.
  • Spiral knurl (patented)
  • Washer: EPDM seal or Alu EPDM bonded washer.
  • Drill capacity: Max 6.0 mm.
  • Finish: KOKEN self-drilling screws apply Hi-tech coating technology, tested according to Australian standard AS3566.2 and DIN 50018 for corossion effectiveness more than 2 - 4 years compared to orther traditional silver coating screws.
  • Application: Use for tile sharped steel roof.
  • Size: 12-14×68 (5.5-14×68);
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