the head size is 3/4 in
please check with your local store to see if these are available as singles.
spike length should be at least double the size of the timber being secured.
Yes, I just opened a box and counted 156 nails. I am sure the amount will vary, and I noticed a few bent ones. There was one that looked like it was 12 in.
Yes, This is the correct hardware. Also use 4'+ rebar, driven into the ground to provide lateral support for the bottom lumber
I drilled a 1/4 inch hole. It was more difficult to drive the spikes but they seem to hold a lot better.
I could not find any either.
Sure, that will work
yes, they are .70$ each
Thank you for your question! These come approximately 2.9 spikes/pound, so there are roughly 145 spikes in the 50 lb. box. Thanks again, and have a great day!