Self-drilling Screws for Sandwich Panels, 5.5/6.3x235 mm, with A19 RAL 9007 Washer, 100 pcs, by KOELNER

★★★★☆ 4.0 114 reviews

$90.00
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$90.00
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Product details

Management number 211236923 Release Date 2026/04/04 List Price $36.00 Model Number 211236923
Category

The unique drill bit shape ensures swift and hassle-free installation in metal structures crafted from hot rolled sections.

  • Toughened thread surface (pliable core). Zinc coating, at least 12um thick, resists corrosion
  • Coloured polyester coating, 45-50um thick (RAL, NCS RR), adds corrosion protection
  • Thread shape and height optimized for sandwich panels and steel construction
  • Self-vulcanizing EPDM washer. Withstands temperature and UV exposure
  • Dual threads: one for steel mounting, second under head to prevent panel damage and seal
  • Drill bit designed for swift, hassle-free steel installation. Sharp point stabilizes fixture surface
Brand Koelner
Color various colours available to suit all metal sheet variants
Size Name 5.5/6.3x235 mm
Metal Type Steel, Zinc
Thread Type Two Types of Threads: One Designed for Mounting Into a Steel Structure, Second Under Head Thread
Finish Types Zinc Plated, Polyester Coated
Manufacturer KOELNER
Material Type polyester
Exterior Finish Coloured Polyester with Zinc Undercoat

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4 out of 5
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114 ratings | 47 reviews
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