Allthreaded features shall have a countersink or chamfer, countersink diameter equalto the major diameter by 90°, chamfers diameter equal to the minor diameter by 90°.
3 I( Z4 j% \* b- s/ o所有帶螺紋的部位應倒角或加工一個沉頭孔，沉頭孔的直徑在90°角度上與螺紋大徑相等，倒角直徑在90°上與螺紋小徑相等。+ z6 x m, }* L2 C
: j5 ~8 \. m2 J1 A7 s$ JIt seems like the "all threaded features" here are intersections between part surfaces and threaded areas instead of fastener or screw threaded features.
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