Genuine AMP V-Nails are designed to pull the joint tightly together, and are manufactured from high quality steel. They will work only in U-Series Underpinners.
Hard Power Twist V-Nails are for medium to hard wood, including but not limited to ash, cherry, hickory, maple, pecan, red oak, walnut, white oak and plastic.
Priced per box of 4000. V-Nails are 1/4" (7mm).