Threaded Insert Number Of Coils In The Free State (UNC)

04 Jun, 2023

Nominal Diameter	Pitch (mm)	Drill Bit Diameter (mm)	Drilling Diameter		Tap	Number Of Coils In The Free State
Nominal Diameter	Pitch (mm)	Drill Bit Diameter (mm)	min.	max.	Min Outer Diameter	1d	1.5d	2d	2.5d	3d
2-56	0.453	2.4	2.30	2.50	2.77	3.0	5.2	7.4	9.6	11.8
3-48	0.529	2.7	2.65	2.80	3.20	2.8	5.0	7.2	9.4	11.5
4-40	0.635	3.1	3.00	3.15	3.67	2.8	4.8	6.8	8.8	10.8
5-40	0.635	3.4	3.33	3.50	4.00	3.3	5.5	7.8	10.0	12.2
6-32	0.794	3.8	3.68	3.89	4.54	2.8	4.8	6.7	8.7	10.8
8-32	0.794	4.4	4.34	4.52	5.20	3.5	5.9	8.3	10.7	13.2
10-24	1.058	5.2	5.06	5.28	6.20	2.9	5.0	7.1	9.2	11.4
12-24	1.058	5.8	5.72	5.92	6.86	3.5	5.9	8.3	10.7	13.2
1/4-20	1.270	6.7	6.62	6.86	8.00	3.4	5.7	8.0	10.3	12.7
5/16-18	1.411	8.4	8.24	8.49	9.77	4.0	6.6	9.3	11.9	14.7
3/8-16	1.588	10.0	9.89	10.12	11.59	4.4	7.2	10.0	12.9	15.7
7/16-14	1.814	11.6	11.51	11.78	13.47	4.5	7.4	10.3	13.1	16.1
1/2-13	1.954	13.2	13.12	13.40	15.24	4.8	7.9	10.9	13.9	17.1
9/16-12	2.117	14.9	14.75	15.03	17.04	5.1	8.3	11.5	14.7	17.8
5/8-11	2.309	16.5	16.38	16.68	18.88	5.3	8.3	11.8	15.0	18.4
3/4-10	2.540	19.8	19.60	19.91	22.35	5.9	9.4	13.0	16.5	20.2
7/8-9	2.822	23.0	22.84	23.18	25.89	6.3	10.0	13.7	17.5	21.3
1″-8	3.175	26.4	26.09	26.47	29.53	6.4	10.2	14.0	17.7	21.6
1″ 1/8-7	3.629	29.5	29.36	29.74	33.29	6.3	9.9	13.6	17.5	21.3
1″ 1/4-7	3.629	32.8	32.54	32.92	36.46	7.0	11.2	15.4	19.5	23.7
1″ 3/8-6	4.234	36.2	35.84	36.35	40.42	6.5	10.5	14.4	18.4	22.3
1″ 1/2-6	4.234	39.5	39.02	39.53	43.62	7.2	11.5	15.9	20.2	24.5

All information is strictly informative

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