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Home » Roofing Screws » Polycarbonate Roof Fasteners » POLY-FAST™

Polycarbonate Roofing Fasteners Series

POLY-FAST™ roofing fasteners feature a Thermal Expansion Hole Cutter that creates a much-required thermal expansion hole on plastic profiled roofing panels. The panels are then securely fastened onto the purlin support underneath in one–go.

A nominal 11mm diameter hole is created by the Thermal Expansion Hole Cutter during the process. When mated with the Thermal Expansion Hole Cutter, with the Depth Stop Knurls acts as a stopper, the height at where it stops upon coming in contact with the purlins; enough so that it prevents screw over-run or over-drive, provide a perfect seal to the enlarged hole, but not deform the corrugations. BDN Fasteners polycarbonate roof fasteners are designed to create precise thermal expansion holes for fixing polycarbonate roof sheets.

POLY-FAST – Polycarbonate Skylight Fasteners Product Features
POLY-FAST – Polycarbonate Skylight Fasteners Product Features_2

A large Domed Weatherseal EPDM washer with two concentric sealing rims on the washer underside completes the package.

  1. The domed structure provides superior strength against high winds.
  2. Two concentric sealing rims hold the 11mm Thermal Expansion Hole Cutter in place prior to drilling, and keep the expansion hole fully sealed after installation.

POLY-FAST™ METAL – Fixing Polycarbonate Skylight to Steel

For fixing polycarbonate roof sheets to Steel

POLY-FAST™ METAL - Fixing Polycarbonate Skylight to Steel
POLY-FAST – Polycarbonate Skylight Fasteners Product Features
POLY-FAST – Polycarbonate Skylight Fasteners Product Features

BDN FASTENERS Polycarbonate Skylight Screws
#12×2-3/8″(12-14x60mm), Hex Flange Head, Self-Drilling Screw for Metal, 50pcs

POLY-FAST – Polycarbonate Skylight Fasteners Product Features

Buy it Now

Steel Penetration

Max 4.5mm thick

Washer

Domed, Weatherseal, Anti-static EPDM Washer

25mm Domed Weatherseal EPDM washer

Domed Structure: Superior strength against high winds.

Two Concentric Sealing Rims: Keeps the 11mm expansion hole fully sealed.

Adapter to use

Magnetic Hex Socket (5/16”)

Magnetic Hex Socket (5/16”)-1

Product Code

BN4-SDHXPS12060C4

Specification

#12-14 X 60mm

Fast Plastic Roofing Fasteners ( For Steel)
Fast Plastic Roofing Fasteners ( For Steel)
BDN Poly-Fast Plastic Roofing Fasteners ( For Steel)-Expansion hole cutter
BDN Poly-Fast Plastic Roofing Fasteners ( For Steel)-Expansion hole cutter

Corrosion Resistance

True Australian Standard Class 4 Coating (C4)
SST 2000hrs + Kesternich 15 Cycles

Product Features

● Hex Washer Flange Head

● Integrated Depth Stop Knurls

● 11mm Expansion Hole Cutter

● Thunder Shot Self-Drilling Point

POLY-FAST™ Timber – Fixing Polycarbonate Skylight to Timber

For fixing polycarbonate roof sheets to timber battens

POLY-FAST™ Timber - Fixing Polycarbonate Skylight to Timber
Green House Roof Materials 1: Polycarbonate 03
Green House Roof Materials 1: Polycarbonate 03
BDN POLY-FAST Polycarbonate Roof Fasteners Project 02
BDN POLY-FAST Polycarbonate Roof Fasteners Project 02
BDN POLY-FAST Polycarbonate Roof Fasteners Project 03
BDN POLY-FAST Polycarbonate Roof Fasteners Project 03
POLY-FAST – Polycarbonate Skylight Fasteners Product Features

BDN FASTENERS Polycarbonate Skylight Screws
#12×2″(12-11x50mm), Hex Flange Head, Self-Tapping Screws for Timber, 50pcs

POLY-FAST – Polycarbonate Skylight Fasteners Product Features

Buy it Now

Product Code

BN4-T17HXPS1250C4

Specification

#12-11 X 50mm

Fast Plastic Roofing Fasteners (For Timber)
Fast Plastic Roofing Fasteners (For Timber)
Fast Plastic Roofing Fasteners (For Timber)-Expansion hole cutter
Fast Plastic Roofing Fasteners (For Timber)-Expansion hole cutter

Corrosion Resistance

True Australian Standard Class 4 Coating (C4)
SST 2000hrs + Kesternich 15 Cycles

Product Features

● Hex Washer Flange Head

● Integrated Depth Stop Knurls

● 11mm Expansion Hole Cutter

● Type 17 Needle Point

Timber Penetration

Min 25mm penetration

Washer

Domed, Weatherseal, Anti-static EPDM Washer

25mm Domed Weatherseal EPDM washer

Domed Structure: Superior strength against high winds.

Two Concentric Sealing Rims: Keeps the 11mm expansion hole fully sealed.

Adapter to use

Magnetic Hex Socket (5/16”)

Magnetic Hex Socket (5/16”)-1

POLY-FAST™ Duo – Dual purpose, Fixing Polycarbonate Skylight to Metal and Timber

For fixing Polycarbonate Skylight to Metal and Timber

POLY-FAST™ Timber - Fixing Polycarbonate Skylight to Timber

Product Code

BN3-S17HXPS1250C3

Specification

#12-11 X 50mm

POLY-FAST Duo - Duofix V-Drill

  • Timber Penetration: min 25mm penetration
  • Steel Penetration: max 4.0mm thick

Product Features

● Hex Washer Flange Head

● Integrated Depth Stop Knurls

● 11mm Expansion Hole Cutter

● Dual purpose Duofix V-Drill

Corrosion Resistance

True Australian Standard Class 3 Coating (C3)
SST 1000hrs + Kesternich 15 Cycles

Washer

Domed, Weatherseal, Anti-static EPDM Washer

25mm Domed Weatherseal EPDM washer

Domed Structure: Superior strength against high winds.

Two Concentric Sealing Rims: Keeps the 11mm expansion hole fully sealed.

Adapter to use

Magnetic Hex Socket (5/16”)

Magnetic Hex Socket (5/16”)-1

Compared to fixing metal roofing sheets, the biggest difference when fixing polycarbonate sheets is the high coefficient of thermal expansion rate. Common among most thermoplastics, allowances and extra spacing should be reserved on frames or purlins, and dedicated screws such as POLY-FAST™ and PolyXpand™ fasteners which create an expansion hole whilst drilling should also be used.

POLY-FAST™ Polycarbonate roof fasteners save 50% of labor time – creates a perfectly round 11mm expansion hole, and fix sheets in one go.

A fool proof design for both beginners and professionals.

Installation Procedure:

  1. Press the drill point onto the corrugation crest.
  2. Use a lower RPM and tap in quick succession until the polycarbonate sheet is penetrated, and the drill point comes in contact with the wooden substrate.
  3. Continue to drill through the wooden substrate as you would with a standard Type 17 screw or TEK srew.
  4. The circular saw will penetrate the polycarbonate sheet and form a perfect expansion hole.
  5. Stop drilling when the domed EPDM conforms to the corrugation, which forms a weathertight seal.
POLY-FAST Polycarbonate Fasteners Installation Procedure-1

Saves 50% of labor time, create a perfectly round expansion hole, and fix sheets in one go.

POLY-FAST Polycarbonate Fasteners Installation Procedure-2

A perfectly round nominal 11mm diameter hole is created by theThermal Expansion Hole Cutter during the process.

POLY-FAST Polycarbonate Fasteners Installation Procedure-3

The Expansion Hole Cutter works in combination with the Depth Stop Knurls, and prevents overdriving of the screw after touching the purlin.

POLY-FAST Polycarbonate Fasteners Installation Procedure-4

A large Domed Weatherseal EPDM washer with two concentric sealing rims on the washer underside completes the package.

Besides the polycarbonate roof screws, other article you may interested in >>

Polycarbonate Roofing Fixing Instructions: 8 Roof Fixing Tips

Polycarbonate Roofing Fasteners Series

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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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