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

Great product. It is easier to use then most lags

The good thing about this is that they give you the spider drive bit for the screws. But I bought a box of 50 6 and I got 49 6 and 2 4. How that happened I do not know but if i needed exactly 50 6 screws I would be screwed. Pun Intended.

Na

Excellent, heavy duty.

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.

Very manly fastener, I probably spent $1000 on fasteners of various types for my dock and deck. These may seem pricey but Im hoping they last forever. The box states that they outperform 3/8 Lag screws and I believe they would. However, I did not notice that they should not be used within 1000 of saltwater.

Drives like a champ. Way easier and faster than the 3/8 bolt it replaces. Hoping the engineers did their homework because these fasteners are too good to believe.

i use these screws for fastening kitchen islands to the floor,ive been using these screws for this for sometime,pretty much since they came out with them,they are perfect and amazing this is the first time having bought them online,,, i now find myself trying to figure out how to kick myself in the butt for not buying them here before ive been purchasing them at one of the 2 popular hardware/lumber chains since using them and it is the exact same product but at a fraction of the cost,,,,cant beat that

These fasteners are a great alternative to using standard lag bolts. They are easier to install and seem to hold up very well. I have used them in several different applications and have not had any issues yet.

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