How to tell what grade your fixing is

For over thirty years, we have had the pleasure of supplying our customers with some of the best building materials on the market. With a stock that includes the likes of steel fixings, as well as various other essentials, we have everything one needs to complete their project with wonderful results. Available for reasonable prices and designed to last, our products should be the ones you choose.

Fixings, or fasteners as they’re also called, are created using an assortment of substances. A number of these materials are split up into grades, which is done in order to detail the hardening processes they’ve experienced, the alloy mixtures that are present, and more.

Since steel fixings are the ones we are most familiar with, we are going to go through some of the grades you can come across whilst using them.

These products usually come in grades 2, 5, and 8. Others exist, but they aren’t utilised as often. The particular grade can normally be discerned by the heading markings one finds on their fasteners. For example;

– Grade 2 acts as your standard quality component, being the most common and least expensive. Besides a manufacturer’s mark, which may not be there at all, there are zero heading markings.
– Grade 5 variants are hardened to amplify their strength. They should possess three evenly spaced radial lines on top.
– Grade 8 fixings are also hardened, but to a greater extent than their counterparts. As such, their strength ensures they can be used in demanding applications. You can recognise them by looking at the six radial lines on their heads.

At Peter Wragge Supplies, the steel fixings we offer are suitable for both single skin and insulated applications onto timber or steel purlins. Not only are they produced using high-class cold forming steels, but the fasteners also undergo heat treatments for extra muscle.

If our products interest you and you’d like more information on them, you’re more than welcome to contact us.