The most reliable way to match the color of a species of wood to fill holes in a wood floor is to mix sawdust from that wood species with glue.
How to fix nail holes in wood floor.
And then you can fill in the holes with a wood putty that matches the floor.
Avoid pva or carpenter s glue.
The only real method of removal is to sand floors down putty and apply new stain on the entire floor that is dark enough to hide these marks.
Use a cloth that has been lightly dampened with water to clean any excess filler from around the nail hole.
Leave your work to dry for at least 24 hours or in accordance with the instructions.
Here are several different ways to fill holes in a piece of wood.
Use a putty knife to put the putty into the holes in small quantities and press it down so it fills the holes completely.
Begin by taping off the area around the holes voids or knots.
Hold a scraper at a 45 degree angle with the blade flat on the wood.
Typically your fingers will suffice but use a putty knife if necessary.
Choose a wood filler that matches the color of your hardwood floor.
No matter what type of sawdust you mix the final color will be a dull yellow or even gray.
Sand it again and you ll just about cover them.
You re still going to see a little bit of them but they will not be obvious.
Wipe off excess putty with a damp rag.
Press the edges of the painter s tape down to seal it against the wood.
Knead a small amount of stainable latex wood filler like this one from minwax before pressing some of the product into each nail hole in turn using a putty knife or a three inch trowel.
Apply a bit of extra putty over the hole so you have a small mound.
As the stain goes beyond the hole into the wood and all that the putties and wax for that matter will fill the holes and not cover the stain itself.
You sand the wood floors you ll get rid of most of that black stain that s showing around the top of the hole.