Product Description, Applications

NAILS - NA SERIES
USP’s NA Series nails are hot-dip galvanized for greater corrosion resistance. Sizes include:

• NA16D - .162 x 2 1/2"
• NA9D - .148 x 1 1/2"
• NA11 - .131 x 1 1/2"

The NA11SS nail has a stainless steel finish; size is .131 x 1 1/2"
The NA16D-RS has no finish; size is .148 x 3 1/2"

WOOD SCREWS - WS SERIES
The WS wood screw is a self-drilling screw that can be used for several framing applications. The screw utilizes a reverse locking serration on the bottom of the screw head to prevent over-tightening against a steel plate that could cause the screw head to shear off.

WS wood screws are constructed of a 1/4' diameter Grade 5 steel with a yellow zinc dichromate finish, and have a bending yield strength of 217,000 psi. An added feature is the USP name stamped on the head for easy inspection.