NOVA #18 Structural Lag Screw

by Screw Products
QUICK ID: Q45108
from $26.78
Ships Free with $75 Order
from $26.78

In Stock

Usually Leaves Warehouse in 2-4 Weeks


The NOVA #18 Structural Lag Screw is the superior lag screw for any of your projects. The horizon curve head diameter of .728 and drive size of T-40 is good for timber, deck framing, ledgers, posts, beams and other general outdoor usages. The slight curvature of the head allows the screw to be either surface mounted or countersunk. With a strong thread that ensures maximum withdrawal strength and a Fast Start Tip that easily grips and cuts its way through the wood, you will feel the power and quality of the NOVA. The Twin blades ensures minimum friction on the shank and the cutting ribs under the head countersink perfectly with maximum wood contact. Commonly used for timber, deck framing, ledgers, posts, beams and more. Compatible with most above ground pressure treated lumber.


  • Hoirzon curve head
  • Head diameter of .728 with T-40 star drive
  • Zytec XT protective coating for general outdoor use
  • Locking wedges help to mill and countersink the head into the wood for a clean finish. It also locks the head into place preventing unwanted future movement.
  • Twin blade knurls cut fast to dramatically reduce friction and heat on the shank while reducing load on the drill
  • Extra sharp type 17 auger point for immediate grip and a fast start
  • Inset thread cuts drastically reduce splitting effects and minimize the driving torque needed to engage the wood
  • Compatible with most above ground pressure treated lumber
  • Common applications include timber, deck framing, ledgers, posts, beams and more


ManufacturerScrew Products
BrandScrew Products
Sub BrandNOVA
ApplicationExterior Use
Drive SizeT-40
FinishZytec XT
Head Diameter - Inches.728
Head TypeStar
MaterialCoated Carbon Steel
Screw Drive TypeStar
Screw Head StyleHorizon Curve
Shank Diameter0
Thread Diameter - Inches.205-.315
Ships to HI/AKNo