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Home » 屋頂螺絲 » 鑽尾自攻螺絲 » POLYXPAND™

Skylight screw fixing 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™
POLYXPAND™ Fixing polycarbonate sheeting to meta
POLYXPAND™ Fixing polycarbonate sheeting to meta

BDN POLYXPAND™ 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

If you need more information about our products or get samples, we are very happy to help!

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BDN Fasteners

BDN Fasteners® 翊創國際企業股份有限公司,擁有自營螺絲工廠、模具廠、包裝廠,透過專業整合式的高效服務品質來滿足客戶需求。全系列BDN螺絲皆符合澳洲AS3566標準規範,通過ISO-9001國際品質管理認證,經SGS專業檢測抗銹耐侵蝕測試。BDN螺絲品質保證20年!

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