The double-headed configuration of duplex nails allows them to be easily inserted and removed using minimal tools. The duplex nail can be driven into the wood to the first head like other nails, yet with the second head outside. Duplex nails are specialized and high-performance nails that are used for a wide range of building and construction applications. The results showed a 47% difference, with 45 Duplex Screws drilled in versus 24 Duplex Nails hammered in.

New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging . This unique design makes them versatile and suitable for certain applications where temporary fastening or easy removal is desired.International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. If you are interested in our products or have any questions, please fill out the following form and we will have someone to help you.

Read more about the condition New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is applicable).

You can change your choices at any time by visiting Cookie preferences, as described in the Cookie notice. Collings wrote: “After the concrete has set sufficiently, the forms are removed, but due to the fact that the heads of the nails are driven into the wood, it is very difficult to remove the nails without damage being done to the forms, which frequently have to be broken and even smashed to pieces in their removal, thus causing a considerable waste of material and loss of time. The Duplex Screw user outperformed the Duplex Nail driver in setting and form stripping – completing the task in six hours vs. The nails are driven into the logs at an angle, which allows for the logs to settle naturally over time without pulling away from each other.

Additionally, duplex Nails are heat-treated to increase their hardness and resistance to wear and tear. All merchandise must be diagnosed by an authorized service center such as Nail Gun Depot to be deemed defective.His description detailed how the double-headed nail was ideal for use on concrete forms because it was easy to remove, compared to regular nails, without damaging the forms. If the item comes direct from a manufacturer, it may be delivered in non-retail packaging, such as a plain or unprinted box or plastic bag. Duplex Screws are only available from select distributors, and come in sizes 1 ¼”, 1 ⅝” and 2 ¾”, and cost more than Duplex Nails. When removing the forms with a hammer or pry bar, substantial pressure is placed on the forms, which can break the edge of the freshly poured cement.