A threaded drill string component (102, 106) that resists jamming and cross threading, comprising: a hollow body (103, 107) having a first end (104, 108), an opposing second end (104, 108), and a central axis extending through the hollow body; and a first thread (110, 112) positioned on the first end of the hollow body, the first thread having a width (118, 124); wherein: the first thread comprises a plurality of helical turns extending along the first end of the hollow body, the first thread comprises a leading end (134, 136) proximate the first end of the hollow body, the leading end of the first thread extends the full thread width from a leading edge (140, 144) of the first thread to a trailing edge (138, 142) of the first thread, the leading end of the first thread comprises a planar surface extending normal to the hollow body, the first thread is tapered relative to the central axis, the first thread has a negative pressure flank angle of about 7.5 to 15 degrees relative to a perpendicular to drill string central axis and a clearance flank of an angle of at least 45 degrees; characterized in that: the leading end of the first thread is orientated at an acute angle (146, 148) relative to the central axis of the hollow body, and the leading end of the first thread faces toward an adjacent turn of the first thread. a hollow body (103, 107) having a first end (104, 108), an opposing second end (104, 108), and a central axis extending through the hollow body; and a first thread (110, 112) positioned on the first end of the hollow body, the first thread having a width (118, 124); wherein: the first thread comprises a plurality of helical turns extending along the first end of the hollow body, the first thread comprises a leading end (134, 136) proximate the first end of the hollow body, the leading end of the first thread extends the full thread width from a leading edge (140, 144) of the first thread to a trailing edge (138, 142) of the first thread, the leading end of the first thread comprises a planar surface extending normal to the hollow body, the first thread is tapered relative to the central axis, the first thread has a negative pressure flank angle of about 7.5 to 15 degrees relative to a perpendicular to drill string central axis and a clearance flank of an angle of at least 45 degrees; the first thread comprises a plurality of helical turns extending along the first end of the hollow body, the first thread comprises a leading end (134, 136) proximate the first end of the hollow body, the leading end of the first thread extends the full thread width from a leading edge (140, 144) of the first thread to a trailing edge (138, 142) of the first thread, the leading end of the first thread comprises a planar surface extending normal to the hollow body, the first thread is tapered relative to the central axis, the first thread has a negative pressure flank angle of about 7.5 to 15 degrees relative to a perpendicular to drill string central axis and a clearance flank of an angle of at least 45 degrees; the leading end of the first thread is orientated at an acute angle (146, 148) relative to the central axis of the hollow body, and the leading end of the first thread faces toward an adjacent turn of the first thread.