4 Pack of 6000 (24,000 Total) Yard Spools Black Sewing Thread All Purpose 100% Spun Polyester Overlock Cone

What is the tensile strength of this thread?

The top of the page says 4 - 6000 yard (each) spools. but the description further down says this package contains 1- 6000 yard spool which is correct?

Most serger cone thread for home sewing is 3000 yards. Will the spools fit regular sergers for home sewing?

Can I use this for my Sewing machine?