These specialised fasteners, often accessible at main {hardware} retailers, function two heads on a single shank. This design permits for momentary fastening and straightforward elimination, because the uncovered second head supplies a handy level for extraction with a hammer or different prying device. For instance, these nails is perhaps used to assemble momentary scaffolding or formwork in concrete building, the place disassembly is required with out damaging the underlying supplies.
The utility of this explicit kind of nail lies in its potential to simplify the dismantling course of. That is particularly helpful in functions the place velocity and effectivity are paramount. The preliminary head secures the fabric, whereas the second head stays accessible, eliminating the necessity for specialised nail pullers or extreme drive throughout elimination. Traditionally, choices like these have been employed to scale back labor prices and materials waste in quite a few building and carpentry initiatives.