What are duplex nails for?

Duplex head nails, also called scaffolding nails, get their name from the two layers on the head of the nail. This keeps the nail from being driven completely into a surface. So, Duplex head nails are a specialty nail useful for scaffolding frame work and other temporary construction.

Why does a duplex nail have two heads?

Double-headed nails are as strong as common nails but feature two heads for easy removal. The nail is driven into the wood to the first head, leaving a small bit of the nail and the second head sticking out.

How many 16d duplex nails are in a pound?

RoHS

Container Type	Box
Product Weight	50
UOM	box
Catalog Page	BBV11, Page 01-342
Notes 44 Nails per pound approx.

How long is an 8D duplex nail?

Specifications

Depth	2-1/4 inches
Nail Length	8D

What is a 16 penny nail?

What is a 16d Nail? A 16d nail is one that’s 3-1/2-inches long. Legend has it that one hundred 3-1/2-inch nails cost 16 pennies back then. And it would follow suit that one hundred 2-inch (or 6d) nails cost, well, 6 pennies. So, it’s an archaic term, but is apparently one that’s here to stay.

Where would you use a duplex nail?

Duplex nails are normally used to build temporary structures, such as braces and scaffolding. They don’t go all the way into the wood, and are very easy to remove. However, these nails can be used for anything that you build temporarily, where you know you will be removing the nails later on.

What are sinker nails?

“Sinkers” are thinner than common nails, have a smaller, flat nail head and are often coated so they can be easily driven flush, or even counter-sunk. Masonry and concrete nails: Made from hardened steel and designed for use with concrete and concrete block.

How many 16 penny nails are in a pound?

Electro-galvanized Common

Size	Nail Length	Count per Lb.
8d	21/2″	99
10d	3″	69
12d	31/4″	63
16d	31/2″	49

How long is a 20d nail?

4″
Table 1 – Nail Sizes (Common Nails)

Nail Size		Shank Length
20d nails	6	4″
30d nails	5	4.5″
40d nails	4	5″
60d nails	4	6″