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

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.

Almost addictive. Used for construction and quick robust repairs. Drive easy and love the flush finish when torqued down.

Used to attach my 1.75 hickory stair treads to dressed white oak stringers. It was an open stair design and I prefinished everything before connecting. Looks great. Also used on my fireplace mantle to mount across the top much like a hidden shelf.

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.

This fastener is easy to use and for the most part seemed to do the job. However, I needed 48 fasterners to accomplish my project. When I opened the sealed box I found only 46 fasteners. Frustrated and with time running short, I simply ordered another box of 50 to get the additional two fasterners required. When the second sealed box arrived, I opened it and counted the number of fasteners. Again, I received only 46 fasterners in a box clearly marked 50 screws. Finally, e-mail was sent to FastenMaster for their explanation. Two weeks later ... no answer. My suggestion? Try another brand/syle. They are out there, and from my experience they might even work a little better. If you choose to use this product, be prepared for a possible 8% shortage.

great screws. I used these to secure pieces of 2x4s when building shelves. I did have to drill pilot holes when screwing near ends of the lumber as the screws split the wood when I didnt drill pilot holes

Theyre screws... What can I say?

Excellent, heavy duty.

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.

These bolts are easy to install with a impact driver and they hold really well. I have installed 100’s of them and can’t remember stripping stripping the head on a single one. They are expensive though but worth the money if you are building something you want to last. I have even removed them from old structures during renovations and was able to reuse them.