The length of the thread to the trailing end of the bone nail set to 7 mm ~ 11 mm (L), the maximum thread diameter of 2.0 mm (D), a bottom diameter of 1.5 mm, a pitch of 0.65 mm, the tip radius is R 0.2 mm (r4), the trailing end of the fillet radius R 0.1 mm (r5), the tip angle is 30 degrees, 17 degrees inclination of the tail end, as shown in Figure 4 (b) an enlarged view of the indicated tooth type. Show
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