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Coarse and Fine Thread Diameter sizes are specified / written differently.
Example: M8X1.25 is a coarse thread pitch, commonly identified as M8. M8X1.0 is a fine thread pitch, identified as M8X1.0 Fine.
A4-50 Marine Stainless
DIN 933
A4-80 Marine Stainless
A4-70 Marine Stainless
DIN 931 / 933
A2-70 Stainless
A2-80 Stainless
A4-80 Stainless