Specifications of historical Thread Standards

Sewing Machine Thread (Nähnorm 100). The flank angle is 60°.

Nominal
Diameter
Inch
Major
Diameter
Bolt mm
Minor
Diameter
Bolt mm
Major
Diameter
Nut mm
Minor
Diameter
Nut mm
TPIPitch
mm
5/64"1.9841.4682.0131.554640.397
3/32"2.3812.0512.3992.1061000.254
3/32"2.3811.7912.4141.889560.453
1/8"3.1752.4253.2172.550440.577
9/64"3.5722.7483.6182.885400.635
11/64"4.3663.5423.4123.679400.635
3/16"4.7634.7314.8204.903320.796
3/16"4.7633.5914.8283.786280.907
15/64"5.9534.7816.0184.976280.907
1/4"6.3505.5266.3965.663400.635
9/32"7.1445.4947.2365.769201.270
9/32"7.1445.9727.2096.167280.907
5/16"7.9386.1048.0406.410181.411
3/8"9.5258.3539.5908.548280.907
7/16"11.1139.94111.17810.136280.907
9/16"14.28812.63814.38012.913201.270
Sewing Machine Thread