Unit:
毫米(mm) |
| ①,THREADS: STANDARD COARSE PITCH M PROFILE TOLERANCE CLASS 6g, IN ACCORDANCE WITH FED-STD-H28/21 . ACCEPTABILITY OF SCREW THREADS SHALL BE IN ACCORDANCE WITH FED-STD-H28/20, SYSTEM 21. ②,3 AND 4 mm DIAMETER SCREWS SHALL HAVE NO LOCKWIRE HOLES. "h" DIMENSION SHALL BE 1/2 OF "k" DIMENSION. WHEN SPECIFIED, DRILL HEAD HOLES AS FOLLOWS: FOR 5 mm DIAMETER - DRILL THREE HOLES COUNTERSUNK 90° X 1 mm MINIMUM DIAMETER, WITHIN 0,3 mm OF CENTER OF HEX FLATS. FOR 6 AND 8 mm DIAMETERS- DRILL THREE HOLES COUNTERSUNK 90° X 1,4 mm MINIMUM DIAMETER, WITH IN 0,3 mm OF CENTER OF HEX FLATS. FOR 10 mm DIAMETER AND LARGER - DRILL THREE HOLES COUNTERSUNK 90° X 1,6 mm MINIMUM DIAMETER, WITH IN 0,3 mm OF CENTER OF HEX FLATS. ③,DIMENSIONING AND TOLERANCING PER ANSI Y14.5M-1982. ④,THIS SIZE IS NOT AN ISO STANDARD, UNLESS M10 SCREWS WITH 15 mm WIDTH ACROSS FLATS ARE SPECIFICALLY ORDERED, M10 SCREWS WITH 16 mm WIDTH ACROSS FLATS SHALL BE FURN ISHED. |
