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Duplex Head Nail
Nails are a simple and basic type of fastener that have been used in construction in one form or another for upward of 3,000 years, making them one of the most time-tested items used in building. The wide variety in nail shape, size, and design make them functional for specific uses.
Nail size is determined by both length and gauge. Nail length is indicated by the letter “d,” which is a system of measurement that dates back to old England and originally represented the word “pennies.” Nails come in many lengths ranging from 2d all the way to 50d with corresponding lengths. Nails must be of suitable strength, with a shank that is long enough to provide an appropriate attachment.
Duplex head nails have two nail heads, one on top, and another slightly lower. Duplex nails are used for temporary construction, such as formwork for pouring concrete or attaching temporary cleats during roofing. The nail is driven until the lower head is flush with the wood.
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When it’s time to disassemble the project, the nail can be extracted using the upper head and the claw of a hammer or pull bar. Duplex head nails also known as double-headed nails, can be used for scaffolding. This nail has two heads, one above the other, so that when driven into a material, the upper head still remains accessible for easy removal once the construction project is complete.
IF YOU ARE WILLING TO BUY KINDS OF NAILS FROM IRANIAN SUPPLIERS, PLEASE SCROLL DOWN AND SUBMIT YOUR REQUEST. |
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