Hobson did you know flyer
Type 17 Polycarb ALL-IN-1 Roofing Screw 12-11 for Timber, Class 4: Did You Know
A one-page Hobson Did You Know flyer for the Type 17 SDS hex head polycarb ALL-IN-1 roofing screw, Class 4, for fixing polycarbonate sheet to timber. It lists the parts and dimensions, applications and an installation guide.
What this covers
- Sizes
- Applications
- Washer and cutter
- Installation guide
Key things to remember
The essentials from this document in plain words. Check the full document before you rely on a figure.
- Parts T9PW4PA1211050 and T9PW4PA1211065: 12-11 x 50 and 65mm, 5/16 inch hex head. Class 4 to AS 3566, C1022 hardened steel.
- For polycarbonate sheet to timber, crest fixing polycarbonate roof sheets on pergolas and sheds.
- A large domed sealing washer supports and seals the sheet, and a cutter makes a thermal expansion hole in it.
- Install with a cordless screw gun set to 1,500 RPM and firm pressure, let the cutter cut the expansion hole, then tighten only until the dome washer sits firmly on the sheet without compressing or deforming it.
Who it helps: Builders fixing polycarbonate roofing to timber pergolas and sheds.
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This document is published by Hobson Engineering, who supply this range to us. We show it here in full so you can read it next to the product; the summary above is ours. Read it on this page or download the PDF. For the most current version, ask us.