FastenMaster FMHLGM412-50 HeadLOK Heavy-Duty Flathead Fastener, 4-1/2 Inches, 50-Count

Great value and excellent screws. Performance is exactly as advertised. We used them to assemble raised beds and a surround for our shed. Definitely use an impact driver for efficiency.

A great advancement over lag bolts well worth the extra cost. Used to install a bridge deck (pressure treated), the installation was a breeze using run-of-the-mill regular and impact screw drills (both corded and battery). A number of star drivers were provided with the quantity Of screws I purchased and I anticipated having to switch them out when stripping one due to carelessness. I used only one driver for 225 screws. Although I was prepared for it, the coating on the screws allowed effective install and drew the heads in flush or below the surface, thus no predrilling or countersinking was required. Out of the 225 screws, two were unusable due to extra material (not sure if metal or coating) Impeeded the driver from engaging the head. Time will tell if the screws hold up to the pressure treated lumber better than the hot dipped galvanized bolts used elsewhere on the bridge. I anticipate they will do better but I’m 66 and maybe my grandkids will find out. A contractor friend recommended these over lag bolts and I’m truly grateful for the advice.

Great product, works extremely well. Will buy again.

I have used these screws when making raised garden beds. They work great, and I found the price here on Amazon cheaper than the local big box stores.

Awesome fasteners. So much easier than pre-drilling and driving lag screws. Ive used the related LedgerLOK screw as well.

Started using this type of screw for my deck rail, fencing and landscaping projects. Works great.

Totally happy with these. Pros: the included spider bit works great driving these fasteners into redwood, pine and cedar. No experience with hardwoods. Depending on the wood itself (adjacent knots, etc), these will counter-sink themselves without stripping, leaving a flush finish. Much nice than the traditional hex-head timber lox. These have a wider diameter head, so they hold very well. Cons: none. Application -- building a pergola from recycled redwood planks.

Well the package claims there is 50 screws. Curiosity made me count. Two missing. Quality control must have been layed off. So I paid more and you made more profit.

These used to be my favorite fasteners for wood projects. Very good. Easy to drive, nice mostly flat head. However I have found other fasteners I like better that are cheaper. (spax)

If you work on big boy projects, sometimes you need big boy parts, and these screws are the real deal. Bought my initial pack at Lowes as I was working on my deck.I went back when I ran out, and, of course, found out they were out of stock. When I turned to the clerk behind the Pro Service Desk for help, his reply (and I kid you not) was, Cant Help Ya Buddy and sat back down. And, big box stores wonder why people shop online. So, we ordered the screws online. They are made in the USA, and if you are needing to brace some 6 x 6 or other large deck lumber, these are going to save you time and money. I also use them on the ledger boards because they screw in flush to the board, and I can put my joist hangers over the screw if necessary. I like the fact they are thin, so they dont crack the boards, but have the strength of larger screws. And, I buy USA where I can.