Lubricate but don’t contaminate

For over three decades we have supplied our customers with only the best building materials. From box and corrugated roofing sheets to metal cladding and insulated roof panels, we have everything that you’ll need to complete your project. Steel fixings also form part of our collection, and are suitable for both single skin and insulated applications onto timber or steel purlins. Well priced and designed to last, ours are the fasteners to choose.

You might think of fasteners as simple to use components, but making the wrong decisions with them can cost you greatly. To aid you whilst using them, we feel it necessary to list the dos and don’ts of fixing usage.

One thing you should do is lubricate the threads. Top engineers throughout the world all recommend that stainless steel threads undergo lubrication prior to the assembly stage. These efforts help to lower the chances of galling, which is where the threads become locked up. It has been discovered that galling risks are at their highest when working with more sizeable threads, from M16 and above, and when utilising Nyloc nuts.

To some, this next point is common knowledge, but do not contaminate your goods. It is possible to pass on miniscule contaminants like iron fillings to your fixings. These can rust on the steel’s exterior and jump-start the corrosion process. This situation can also arise when the fillings from grinding deeds end up being blown onto the steel substance.

At Peter Wragge Supplies, the steel fixings in stock are created using high calibre cold formed steels. They are also heat treated to provide them with outstanding drilling characteristics and mechanical strength. Furthermore, our screws are zinc coated with a dichromate passivation for enhanced protection.

If our merchandise interests you and you’d like to know more, feel free to get in touch with us.