Hillman 1/4 In. x 3-1/2 In. Grade 2 Zinc Hex Bolts (100 Ct.) Via or plastic with a 3/4"

or plastic with a 3/4" cutting depth

and discharge protection prevents cell damage

Visible vertical line tracks on the wall behind the laser itself

The closed cell structure of the cured material provides an R factor of 5 per inch of cured foam making it an efficient method for stopping air and moisture infiltration and expansive warm and cold air loss between windows and rough frame

Hillman 1/4 In. x 3-1/2 In. Grade 2 Zinc Hex Bolts (100 Ct.) Via or plastic with a 3/4"Hex bolts are machine bolts that have been designed to adhere facing materials to prevent shear movement. Specifically in wood to wood, wood to metal, or metal to metal applications. Zinc grade 2 hex bolts are recommended for most general uses and are corrosion resistant for typical use. Be sure to pre drill any holes and to use washers and nuts that are a similar grade and finish.