Most visitors online was 4107 , on 14 Jan 2023
presume "etched" meant to be "stretched"?
Thanks all, got it sorted now. Many thanksHi Craigmile,
No, I'm sure Willie meant what he wrote; if the surface of a spring like this is in any way compromised, it has an effect on the strength of it. A spring's strength is directly proportional to its width, inversely proportional to its length, and proportional to the cube of its thickness, so any damage to the surface of such a thin piece of steel has a greater effect.