1 3/4" Foam Fastener Washers, 250 Count

These washers greatly simplify the attachment of rigid foam insulation to building structure. The washer is designed for a drywall screw and the head of the screw fits nicely inside the washer. Prior to tightening the washer is dome-shaped but it flattens as the screw tightens, if you continue to tighten the screw it will then sink just below the surface. For hanging rigid foam these are much better than plastic roofing type washers.

I used these to hang 2" rigid foam insulation over 2x6 framing. Works great, eliminates the problem of screws going through the foam. Will definitely use again!

Using this to fasten EPS 1 1/2 inch foam to plywood wall before siding job. Also going to use them with screws to attach fur stripping.Complete rip off now purchasing here. Shipping went from $9 to $15. Googled and found not only better shipping but larger quantity at cheaper price. Do your homework.

Used these for attaching 4 inch iso foam board insulation to the underside of a floor. They worked well with the screws I purchased separately.

I am installing 2 1/4" poly boards on the underside of my roof. These work perfect.

they work

Worked perfectly, a few split at which I considered a reasonable tightness. Came loose in a good sized box which made for easy installation.

Good product