TORN. DIN6921 M20x90 10.9 flZnL nc 1000h

This appears to be a product description or specification, possibly for a bolt or fastener.

• TORN: This likely refers to the manufacturer or brand name.
• DIN6921: This indicates that the product conforms to the German industrial standard DIN 6921, which specifies dimensions and requirements for certain types of bolts.
• M20x90: This describes the bolt's size. M20 refers to a metric thread diameter of 20 millimeters, and 90 indicates the bolt's length in millimeters.
• 10.9: This is the strength class of the bolt according to the ISO standard. A higher number indicates greater tensile strength.
• flZnL: This likely describes a surface treatment, possibly hot-dip galvanization (fl) with a zinc coating (Zn).
• nc: This could stand for "non-corrosive" or a similar designation related to the bolt's resistance to corrosion.
• 1000h: This might refer to the product's lifespan or operational time under specific conditions, possibly 1000 hours.