Greg Mote
Hub Summary Folio Stuff Mechanical Reference
size conversion thread [ us number us fraction iso ]
nominal  minortap size
ØpitchseriesØØ
10.25coarse0.7290.75
1.10.25coarse-0.85
1.20.25coarse-0.95
1.40.30coarse-1.10
1.60.35coarse-1.25
1.80.35coarse-1.45
20.40coarse1.5671.60
2.20.45coarse-1.75
2.50.45coarse-2.05
30.35fine2.6212.65
30.50coarse2.4592.50
3.50.60coarse-2.90
40.50fine3.4593.50
40.70coarse3.2423.30
4.50.75coarse-3.70
50.50fine4.4594.50
50.80coarse4.1344.20
60.75fine5.1885.20
61.00coarse4.9175.00
70.75fine6.1886.20
71.00coarse5.9176.00
80.75fine7.1887.20
81.00?6.9187.00
81.25coarse6.6476.80
90.75fine8.1888.20
91.00?7.9188.00
91.25coarse7.6477.80
100.75fine9.1889.20
101.50coarse8.3768.50
110.75fine10.18810.20
111.50coarse9.379.50
121.75coarse10.10610.20
142.00coarse11.83512.00
162.00coarse13.83514.00
182.50coarse15.29415.50
202.50coarse17.29417.50
222.50coarse19.29419.50
243.00coarse20.75221.00
273.00coarse23.75224.00
303.50coarse26.21126.50
333.50coarse29.21129.50
364.00coarse31.67032.00
394.00coarse34.67035.00
424.50coarse37.12937.50
454.50coarse40.12940.50