6 // https://en.wikipedia.org/wiki/ISO_metric_screw_thread
11 thread_act = thread_nom + 0.375;
16 base_sz = [40, head_size];
22 base_dia = head_size / cos(30);
25 translate([0, 0, -0.1])
27 metric_thread(diameter=thread_act, pitch=thread_pitch,
28 leadin=1, internal=true,
29 test=$test, length=thread_len + 0.1);
36 square(center=true, base_sz);
38 linextr(-base_th, thread_len - 0.1)
39 circle(r= base_dia/2, $fn=6);