FastenMaster FMHLGM412-250 HeadLOK Heavy-Duty Flathead Fastener, 4-1/2 Inches, 250-Count,Black

I used these screws to secure 1x4 furring strips in a rain screen design on the exterior walls of a new construction house. The work great for that purpose and I am confident in their being able to hold up over the long term. My guys were driving them through the 1x4s, 2 of foam board, 1/2 plywood and into 2x6 studs with a 1/2 cordless drill but I would suggest an impact driver or pre-drilling the holes for a much easier time and mush less splitting of the 1x4s or 2x6 studs.

What can I say? They are fasteners.

Love these. Very strong.

What more can I say about big screws, they worked.

Easy to use and really convenient

Works great, strong.

I love these. They looked great on my new cedar raised beds and they have a lot more gripping power than a traditional wood screw.

Great screws for attaching furring strips through continuous insulation sheeting on house exterior to studs. Only issue is that if they didnt give you three bits for the spider drive you may be out of luck because my impact broke the first bit about half way through. But since they give 3 bits you should be good.

Worked great

For the price these are the go to lags. Wish the point was a little sharper but can’t complain for the price.