GRK 772691122353 12235 5/16" x 6" RSS Rugged Structural Screws 50 Count, No Size, Gold

Great ProductOne small complaint lags don't pull in the timbers as stated.You need to use clamps to st timbers then set the screws.You can attempt to use them with just drilling them in. However we you drive them in without the clamps you get tear out between the two and stops the screws from pulling the timbers tight.Adds an extra step.

Built a gazebo on a hillside this summer and these things are a great way to make solid connections with large diameter wood. Still used some number of 1/2 inch bolts where I needed them but these things are fast way to erect a deck, etc.

Our deck inspector agrees

For installing a ledger board on a deck, these screws are so superior to lag screws, there is no comparison. We needed to attach over a stucco wall and all the was needed was a small 5/6" hole punched through the stucco, way easier than a big 1/2" one. These screws drive easily, cut their own threads and have so much gripping power, you have to be careful how fast/deep you drive them cuz they will crush your ledger board. Great buy on fantastic screws

I bought these last year and loved them. This year I re-did my porch, and bought them again. I know for sure my porch will last for many years. Great product.

These bolts work great. Much easier to use than old style lag bolts. I've used many different sizes for many different projects and I'm sold on GRK.

I used these to reinforce my deck framing with pressure treated 4x4s in a Y configuration on each 4x6 post. No stripping at all, pulled the boards together tightly. No complaints at all.

Received a tiny drive bit, not the size shown in the picture. Had to order another one to use the screws

good product

Used these in constructing a 4 ply dimensional lumber beam. Much cheaper than buying at HD and shipping was fast. Recommended.

The GRK screws arrived as described with fast shipping.

I used this for connecting 4x4 wood for landscaping. Great product and price.

Excellent holding