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

These are wonderful bolts. Go in like silk without having to drill pilot holes. Pull in very tight with no slipping.

They worked great.

Although they are a bit Pricey, they are without a doubt the best holding screws Ive ever used and I have used them all. They go in rather easily , draw up tightly and hold like the wood was welded. Great Product!

There where quite a few missing the threads in the bucket. Probably A dozen or more.

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

Awsome...plain and simple.

Used on every deck I build

These have become a staple around our property! They work great and we have purchased multiple lengths. You do need an impact drill.

I think these are great. I use both HeadLOKs and TimberLOKs when building in VERY windy country.

Was a bit concerned when I saw the price of these for the quanity compared for what I had been paying at a local large do it yourself store. Pail they came in is nice, good quality screws, will be ordering more only larger quanities next time at this great price.