Hobson performance data
Polycarbonate Roofing Screw 12-14 x 60, ALL-IN-1 Hex Head with Dome Washer: Performance Data
Hobson's two-page DRiLLX product data sheet for the Metal SDS hex head polycarb ALL-IN-1 roofing screw, 12-14 x 60mm, Class 4, for fixing polycarbonate sheet to steel. It covers applications, pull-out values, mechanical properties, screw, washer and cutter dimensions, and installation.
What this covers
- Applications
- Pull-out values
- Mechanical properties
- Dimensions
- Washer and cutter dimensions
- Installation
Key things to remember
The essentials from this document in plain words. Check the full document before you rely on a figure.
- Part T9PM4PA1214060: 12-14 x 60mm, 5/16 inch hex head, packed 250. For crest fixing polycarbonate roof sheets to metal on pergolas and sheds.
- A large domed sealing washer supports and seals the polycarbonate, and a cutter under it makes a thermal expansion hole in the sheet.
- C1022 hardened steel with a Class 4 finish.
- Working pull-out load from the steel it is fixed into, safety factor 2.5 already included: 550N in 1.1mm G2, 1,850N in 1.9mm G450, 3,850N in 3.8mm G450. Laboratory values; actual loads depend on the base material.
- Install at 2,200 to 3,000 RPM with 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. Impact drivers are not recommended.
Who it helps: Builders fixing polycarbonate roofing to steel on 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.