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Product Advice: A quick guide to channel fixings.

.Whether you’re working on a simple installation job or a huge building project, one thing is true: your choice of fixings and fastenings can draw that fine line between success and failure – and that’s especially true when it comes to channel fixings. From bolts and nuts to guidance on sockets and screws, we’ve created a quick guide to channel fixings. Be sure to check our blog out before you buy!

It’s a fact that choosing the right parts is essential if you want to deliver that neat and professional finish your client demands, as well as the secure and sturdy installation mandated by building regulations. From light tasks to heavy-duty jobs, our guide will cover all of the key products you need to succeed.

What is channel used for in construction?

It’s simple. Channel is used to create trapezes to support containment and pipes and fix them to walls or floors.  They are a quick fixing method for your cables and pipes or build special frames to support your bespoke requirements. Channel is an adjustable framing system that is usually constructed from Pre Galvanised Steel but can be supplied in Hot Dip Galv or 316-grade stainless steel. It can be cut to a specific length for speed or supplied in standard 3 & 6mtr lengths.

So – Simple. Quick installation, easy accurate cuts without additional measuring tools, customisable length per application requirements, the clean, pre-galvanised finish can easily be painted, high-quality steel & rust resistant, Nifty!

Now, let’s take a look at some of the key channel fixings available.

Channel nuts

Channel nuts are vital elements of channel support systems, they have grooves along the edges which act as small teeth that can lock onto the channel whenever they are tightened. Simple, effective and designed to perform with channel struts, you’ll need to ask yourself a key question before you purchase: do you need plain channel nuts or spring channel nuts? Check out the information below which should help you decide…

▪️Plain channel nuts: Plain channel nuts are rectangular in shape and can be easily turned to fit against the edges of your channel. These versatile products are highly cost-effective and are ideal for the vast majority of tasks you’ll face in your day-to-day work. They are a perfect choice for easy-access situations and assembly can be done in advance.  Our Plain Channel Nuts come in packs of 100 and are available in 4 sizes; M6, M8, M10 and M12.

▪️Sprung channel nuts: Also known as ‘zebedees’ in the construction trade. Whilst Plain Channel Nuts are incredibly versatile, sometimes your task will call for a solution that allows for more precise and easy placement. That’s where Spring Channel Nuts come in! If you’re assembling a channel at a height or if you’re using your hands for other tasks, you’ll need to ensure your channel nuts stay in place under pressure. These nuts don’t need to be held when you’re installing your stud or bolt. The spring does all the hard work for you, saving on time and hassle on those more tedious jobs.

There are lots of channel nuts to choose from, each offering their own unique features and benefits. View the full range here.

Hex nuts & bolts

You’ve heard of channel nuts – now it’s time to learn about hex nuts and bolts. Hex nuts are six-sided hexagon nuts which can be used for tightening bolts and screws. Hex bolts, meanwhile, are a type of threaded bolt typically characterised by their six-sided, hexagonal-shaped head.

When combined with channel nuts and square plates, hex bolts and nuts can create a fixing to secure various installations. 

To achieve the best possible results, select a hex bolt or nut which can lock down your plate and provide a connection for attached other accessories. Before you get started, you must remember that the hex nut should ALWAYS correspond with the channel nut you’re using!

Square plates

Once you’ve decided on your nuts and bolts, you’ll want to decide on your next channel fixing essential: square plates. Also known as square plate washers, these handy products are made from pre-galvanised steel.  They have a significantly larger surface area than their round counterparts. Highly corrosion resistant, these specialised washers fit perfectly across open channel struts. As a next step, you can tighten the stud onto the washer and into the channel nut.

There are three options to choose from once you’ve specified your required hole size.

  • Square plates: Square plate washers come in a range of hole sizes and materials which will correspond to available thread sizes. The larger thread, the larger the stud that can fit within it. Choose carefully!
  • Quick nuts: Pre-assembled square plates and channel nuts connected with a simple plastic clip. The unique 3 in 1 design allows fixings to hold themselves in place with easy adjustment of positioning; giving the installer freedom to mount fittings (even on a vertical axis) with ease.
  • Quick studs: Pre-assembled channel nut, washer, stud and hex nuts are a four-in-one ideal time-saving solution. No more need to fiddle around on site making up your channel nut, cut stud, square plate and hex nut. These are ready-to-use pre-assembled for quick fixing.  All you need to do is decide the length and diameter of the stud.

Armaflo currently holds a huge selection of square plate washers. View the full range here.


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