25mm And 65mm Coil Nails Feature Various During Industries

Jul 10, 2023 | NEWS

When buying coil nails for construction projects, contractors and DIYers often choose between two common length options: 25mm and 65mm nails. Both nail lengths offer benefits depending on the application and material being fastened.

Common Uses For 25mm Nails

For light timber framing and joining projects, 25mm (1 inch) coil nails are a versatile fastening solution. Their shorter length makes them ideal for applications where penetration depth does not need to be too great. Common uses for 25mm nails include:

• Securing timber battens and noggins
• Joining timber studs and joists
• Attaching timber trims and facia boards
• Fastening timber grounds and skirting boards

Because of their short length, 25mm coil nails are less likely to penetrate completely through lumber and cause damage on the other side. This makes them well-suited for joining timber in confined spaces where there are obstructions on the opposing surface.

The smaller nail head of 25mm coil nails also tends to cause less visible damage to timber after being driven flush. This can be beneficial for joining framing members that will be concealed behind wall linings or flooring.

2.5 Inch Coil Nails Match Deeper Nail Penetration

On the other hand, 65mm (2.5 inch) coil nails are as designed for applications that require deeper nail penetration and higher pull-out resistance. Their extra length makes them a preferred choice for:

• Securing timber floor joists
• Fastening rafters and roof beams
• Joining timber decking and boardwalks
• Fixing timber formwork and shuttering

The added penetration of 65mm nails allows them to achieve significantly higher withdrawal resistance compared to shorter coil nails. This is important for applications involving dynamic and repetitive loading, such as roof structures and floor joists that experience movement from foot traffic, wind and temperature changes.

The larger nail heads of 65mm coil nails also assist in clinching and securing the fastener once driven flush. This helps maximize shear and withdrawal resistance for the joint.

Materails Of 25mm And 65mm Coil Nails

Both 25mm and 65mm coil nails are commonly made from hot-dipped galvanized steel or stainless steel for corrosion resistance. They are typically available in diameters ranging from 2.5mm to 4.2mm, with options featuring ring shank, spiral groove or smooth shank profiles.

25mm and 65mm Coil Nails Each Offer Advantages

In summary, 25mm and 65mm coil nails each offer advantages for different types of timber framing and assembly applications:

• 25mm nails are preferred for lighter joining work where penetration depth is less critical. Their shorter length reduces risk of damage on the opposing surface and leaves smaller nail holes.
• 65mm nails provide higher pull-out resistance through deeper penetration. Their length makes them well-suited for applications involving dynamic loading, such as floors, roofs and decks.
• Both nail lengths work best when made from corrosion resistant steel to maintain performance over time.
• Choosing the correct nail length depends on factors like lumber thickness, joint design and anticipated load levels for the application. Understanding these specifics will ensure you use the right fastener for a long-lasting and secure connection.