Din 1624 Standard Pdf Here

: In the hardware and furniture industry, DIN 1624 specifies "persistent mortise" nuts (often called tee nuts or battering ram nuts ) made of galvanized or stainless steel.

Because DIN 1624 is withdrawn, you cannot buy it from Beuth Verlag (the official DIN sales body) as an active document. However, you can legally obtain a copy through these channels: din 1624 standard pdf