For this application lag screws might be the best option.
Best screws for wood fence panels.
Which fasteners are best for a wood fence.
Don t use galvanized steel the zinc in the fasteners may.
They have tremendous holding power.
Deck screws are the best choice for pressure treated wood because they do not cause corrosion to the screws or stain the wood.
To attach pre assembled panels or backer rails to posts it is suggested 18d to 20d nails or 3 1 2 in.
Although preferable for fine woodworking general purpose wood screws are less effective for fencing applications than deck screws.
If your fencing is tall and the planking is heavy you may need to install three sets of fence rails.
Fastener length regardless of whether you use nails or screws for fence the length is vital to the success of your fence.
For cedar fences use stainless steel aluminum or polymer coated fasteners.
For fences near lakes creeks and riverbanks consider silicon bronze screws.
Unlike regular screws lag screws have a hexagonal head and are driven with a wrench.
What type of screws to use on a wood fence.
Deck screws also known as green screws are excellent for pressure treated wood.
The type of wood screws used on a wooden fence rail are often called deck screws.