--Cross recessed pan head tapping screws with collar 
            DIN 968 
            --Hexagon washer head tapping screws 
            DIN 6928 
            --Tapping screw threads(ISO 1478:1999) 
            DIN EN ISO 1478 | Replace DIN 7970 
            --Tapping screw and washer assemblies with plain washers(ISO 10510l:1999) 
            DIN EN ISO 10510 
            --Hexagon head tapping screws 
            ISO 1479 | Replace DIN 7976 
            --Slotted pan head tapping screws 
            ISO 1481 | Replace DIN 7971 
            --Slotted countersunk(flat)head tapping screws(common head style) 
            ISO 1482 | Replace DIN 7972 
            --Slotted raised countersunk (oval) head tapping screws(common head style) 
            ISO 1483 | Replace DIN 7973 
            --Cross recessed pan head tapping screws 
            ISO 7049 | Replace DIN 7981 
            --Cross recessed countersunk (flat) head tapping screws(common head style) 
            ISO 7050 | Replace DIN 7982 
            --Cross recessed raised countersunk (oval) head tapping screws 
            ISO 7051 | Replace DIN 7983  |