Used where permanent strength and holding power are of primary importance
The resistance to withdrawal is always at its maximum because the Annular form is a complete ring of a buttress shape hence 'popping' of the heads through movement of timbers is eliminated
Advantages in economy over orthodox nails are also obvious as smaller quantities, shorter lengths and lighter gauges can be used without loss of holding power, particularly in side grain timber.
Product Brand: Picardy
Product Code: 305474