M4~ 1/4 "~               규격(M) H h B 1/4 0.460 0.216 0.438 5/16 0.531 0.236 0.500 3/8 0.610 0.326 0.562 1/2 0.728 0.330 0.750 5/8 0.984 0.511 0.938 3/3 1.200 0.590 1.125 7/8 1.279 0.708 1.312 1" 1.397 0.748 1.500       규격(M) H h B M4 7.5 3.5 8 M5 7.5 4 8 M6 9.5 5 10 M8 12.5 6.5 12,13 M10 15.5 8 14,17 M12 18.5 10 19 규격(M) H h B M14 21 11 22 M16 24 13 24 M18 27 15 27 M20 29 16 30 M22 32.5 18 32 M24 35.5 19 36