Types of Staples and and What's Important to Know

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The phone calls we receive from frustrated customers, are usually around them not knowing which staple or nail they need. This, mainly due to the fact that each manufacturer applies their own code to each category of Staple or Nail.

An example below outlines the Type 71 Series Staple, commonly used in upholstering. Here, you can see how a code varies between manufactures:

71 series – 3G – 7 – 670 – V S. (All the same staple type!)

Then comes finishes !:

I'll start with the finish found on the various staples and nails found in the industry.

Bright- The fasteners are uncoated and will therefore be susceptible to corrosion (to me and you – rust) and are not suitable to be used outside or in damp environments.

Electro Galvanized- In this process the fasteners are coated with a zinc coating which gives some corrosion resistance.

Stainless Steel- This fastener will give full corrosion resistance and is ideal for use outdoors and is used extensively in the boat building industry. When using woods like cedar, redwood etc. It is also advised to use a stainless steel fastener as the tannin will react with the conventional finish and will cause unsightly blackening / staining.

Staple types tend to fall into categories of:

Fine Wire- Used a lot in the upholstery industry types include for example the 71 and 80 series staple range.

Heavy Wire- Is as it's say's on the tin and are used for furniture framework (eg. 14 Series) and wide crown staples (eg. 17 Series) used for fixing cartons to pallets, roof shingles.

The staple has two main dimensions the crown and leg length. The crown will be the same in a particular type of staple but that type will be available in differing leg lengths depending on what is required.

The crown is simply described as the crossbar dimension.

Another staple feature I'd like to cover is the divergent point staple. Unlike the conventional staple the legs have their chisel points cut in an opposite direction so on penetration of materials the legs will deviate in opposite directions and give that extra holding power and are used extensively in the flooring industry – for example the 90 series divergent point.

Be aware use of these staples in wood can send the legs in all sorts of directions – watch the positioning of your hands – I have the scars to remind me!

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Source by Stephen Pollock

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