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Home » Roofing Screws » Self-Drilling Screws » POLYXPAND™

Polycarbonate Roofing Fasteners

POLYXPAND™ – Fixing Polycarbonate Sheeting to Metal

Secure your plastic skylight with our trusty and durable BDN POLYXPAND self-drilling fasteners. POLYXPAND creates an expansion hole in a one-shot process, fixing skylights easily onto steel substrates.

STEEL PENETRATION

Max 5.5mm Thick

ADAPTER TO USE

Magnetic Hex Socket (5/16”)

PRODUCT FEATURES

Hex Washer Flange
Expansion Wings
Thunder-Shot Point

WASHER

Ø 25mm Dome Grey EPDM BAZ

25mm Dome Grey EPDM Washers

BN3 Series

SST 1000hrs + Kesternich 7 Cycles

PART NUMBER

SDHCP1255C3D 12-14 x 55mm
SDHCP1265C3D 12-14 x 65mm
SDHCP1272C3D 12-14 x 72mm

POLYXPAND™ – Skylight screw fixing fasteners
Skylight fixing Fasteners POLYXPAND™
Skylight fixing Fasteners POLYXPAND™
Self-Drilling Screws POLYXPAND™
Self-Drilling Screws POLYXPAND™
Skylight fixing Fasteners POLYXPAND™ Fixing polycarbonate sheeting to metal - BDN FASTENERS® Made in Taiwan
Skylight fixing Fasteners POLYXPAND™ Fixing polycarbonate sheeting to metal - BDN FASTENERS® Made in Taiwan
POLYXPAND™ – Fixing Polycarbonate Sheeting to Metal
POLYXPAND™ – Fixing Polycarbonate Sheeting to Metal
POLYXPAND™ – Fixing Polycarbonate Sheeting to Metal
POLYXPAND™ – Fixing Polycarbonate Sheeting to Metal
POLYXPAND™ Fixing polycarbonate sheeting to metal
POLYXPAND™ Fixing polycarbonate sheeting to metal

POLYXPAND™ Polycarbonate roofing fasteners are designed to create a much-required thermal expansion hole on plastic roofing materials and then securely fastened onto the purlin underneath in one-go. Owing to the wings on the drilling tip, a 10mm diameter thermal expansion hole is created during the process, which then snaps off immediately upon coming in contact with steel. A large BAZ washer completes the package, covering the expansion hole while providing superior strength against high winds.

Features and Benefits

True Australian AS3566 Standard

  • Hex Washer Flanged Head: Separate EPDM steel bonded washer NOT required. (No risk of leakage)
  • Thermoset 100% EPDM BAZ washer:
    ☑ Weathering Resistant (UV / Ozone / Acid)
    ☑ 100% Leak proof sealing
    ☑ Perfect fit under hex washer flange
    ☑ Optional metal washer add-on
    ☑ Shock absorbing (for high wind areas)
  • Creates a 10mm dia. thermal expansion hole for plastics
  • Winged Drilling Tip: Wings break off once in contact with the steel purlins, keeping the plastics sheets securely fastened.

BDN POLYXPAND™ BAZ EPDM Washer Installation Instructions

BDN POLYXPAND™ BAZ EPDM Washer Installation Instructions

BN3 Head Mark

BDN FASTENERS® BN3

Surface CoatingBN3 Self-Drilling Screws Surface Coating

Corrosion Resistance Class 3
Coating Type Zinc+ Organic Coating (Ruspert)

SST 1000 hrs + Kesternich 7 cycles

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BDN Fasteners

BDN Fasteners (Broaden Worldwide Co., Ltd) is an ISO-9001 Certified Quality Supplier-Manufacturer of Australian Standard AS3566 self-drilling and self-tapping screws in various coatings for steel to steel and steel to timber applications. Our headquarters are in Taiwan and we operate sales and marketing offices in India and Thailand.

Founded in 2009.

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