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

I used these to build my deck with any problems. Slightly cheaper than Lowes.

Price was good, delivery was good. They are as advertised and worked great in my application screwing gable trusses to the side of my shop to attach a roof to cover my doors. There was 50 in the box and there was a driver in the box.

Not only did these work very well - I needed to add some 4x4 supports for a cover to an existing deck - but they look good one installed. Not something youd normally credit to a screw. Worth the money.

I used these to create a frame of 4x4s for a 10 x 20 foot deck. They were very easy to use and the end result is very solid with a professional, finished look.

Better grip and easier to use in timbers

Great product, fair price.

These are great lags/screws. I bought another box after using this whole box. They do not strip and hold up very heavy items in my home gym and garage. I definitely recommend these.

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

Nothing to dislike they are the best. Im a roof contractor primary use is securing roof anchors for saftey harnesses, into a truss of course. First experience 7 years ago building a tree house. Requires little energy meaning extended battery life. Going into a harder wood the aggresive thread will pull the wide head half through the side of a 2x4 without effort. These screw are hard to find sometimes and Amazon has good prices if you shop the site. Repeat buyer every few months.

Tougher than nails. Drive in fast and grip strong. Flat head is a good look and doesnt penetrate the wood like other legs. Each box has a driver as well. 5 stars