Диаметры и шаги дюймовой резьбы с углом профиля 55°

Диаметры и шаги дюймовой резьбы с углом профиля 55°
Резьба	d 0	d ср	d 1	n	S
3/16	4.8	4	3.4	24	1.058
1/4	6.3	5.5	4.7	20	1.270
5/16	7.9	7	6.1	18	1.411
3/8	9.5	8.5	7.5	16	1.588
[7/16]	11.1	10	8.8	14	1.814
1/2	12.7	11.3	10	12	2.117
9/16	14.3	12.9	11.6	12	2.117
5/8	15.9	14.4	12.9	11	2.309
3/4	19	17.4	15.8	10	2.540
7/8	22.2	20.4	18.6	9	2.822
1	25.4	23.4	21.3	8	3.175
11/8	28.6	26.3	23.9	7	3.629
11/4	31.7	29.4	27.1	7	3.629
[13/8]	34.9	32.2	29.5	6	4.233
11/2	38.1	35.4	32.7	6	4.233
15/8	41.3	38	34.8	5	5.080
13/4	44.4	41.1	37.9	5	5.080
[17/8]	47.6	44	40.4	41/2	5.644
2	50.8	47.2	43.6	41/2	5.644
21/4	57.1	53.1	49	4	6.350
21/2	63.5	59.4	55.4	4	6.350
23/4	69.8	65.2	60.5	31/2	7.257
3	76.2	71.5	66.9	31/2	7.257
31/4	82.5	77.5	72.5	31/2	7.815
31/2	88.9	83.9	78.9	31/2	7.815
33/4	95.2	89.8	84.409	3	8.467
4	101.6	96.2	90.759	3	8.467