A duplex nail is a two-headed nail that was invented in 1916 by William Arthur Collings to replace common nails used in formwork. Before the invention of duplex nails, common nails were widely used in formwork. Today, duplex nails are most commonly used in temporary construction, such as building wooden scaffolding, formwork, or temporary wood braces. The nail is hammered only to the first head leaving a gap with the second so the nail can be easily removed using a hammer.
| Size | Ø, mm | Length, mm | Distance between heads, mm | Top Head Ø, mm | Lower Head Ø, mm | Screw | Ring | Smooth |
|---|---|---|---|---|---|---|---|---|
| 6D | 2.87 | 50.8 | 6.35 | 5.95 | 7.15 | – | – | + |
| 8D | 3.33 | 63.5 | 6.35 | 5.95 | 7.15 | – | – | + |
| 10D | 3.76 | 76.2 | 9.55 | 5.95 | 8.75 | – | – | + |
| 16D | 4.11 | 88.9 | 9.55 | 7.15 | 8.75 | – | – | + |
Nail shank types:
Nail Cutting Point types:
Nail finishing types:
Also we can offer nails from low and high carbon or stainless steel.
500-1000 kgbig carton box | |
1 boxon a pallet |
25 kgsmall carton box | |
36 boxeson a pallet |
Nails can be packed in unlabeled carton boxes or carton boxes with our logo.
On request, individually selected logos, texts or other graphics may be printed on the packaging.
Other packaging options are available upon request.