Besly Standard Taps - Catalog No. 4116

Besly Special Purpose
STI Taps

High Speed Steel
Ground Thread

Straight Flute
3 and 4 Flute

Machine Screw Sizes:
4 | 6 | 8 | 10

Fractional Sizes:
1/4 | 5/16 | 3/8 | 7/16 | 1/2

Catalog Number: 4116

Besly Special Purpose STI Taps These Besly Special Purpose Taps are for production tapping of holes which are to accept screw thread inserts.

Please call 800 435-2965 for current prices.

Printing Hint: Reduce the text size and turn off background printing before printing this page.

Tap Size & TPI	No. of Flutes	Cham Type	P.D. Limits	EDP No	Pkg Qty	Basic Pitch Dia.	Overall Length A	Thread Length B	Shank Dia. C	Square Length D	Square Size E
4-40	3	Plug	H1	15732	12	.1283	2	11/16	.141	3/16	.110
4-40	3	Plug	H2	15734	12	.1283	2	11/16	.141	3/16	.110
4-40	3	Bot	H1	15733	12	.1283	2	11/16	.141	3/16	.110
4-40	3	Bot	H2	15735	12	.1283	2	11/16	.141	3/16	.110
6-32	3	Plug	H2	15744	12	.1583	2-3/8	7/8	.141	1/4	.152
6-32	3	Plug	H3	15750	12	.1583	2-3/8	7/8	.141	1/4	.152
6-32	3	Bot	H2	15745	12	.1583	2-3/8	7/8	.141	1/4	.152
6-32	3	Bot	H3	15751	12	.1583	2-3/8	7/8	.141	1/4	.152
8-32	3	Plug	H2	15760	12	.1843	2-3/8	15/16	.168	9/32	.165
8-32	3	Plug	H3	15762	12	.1843	2-3/8	15/16	.168	9/32	.165
8-32	3	Bot	H2	15761	12	.1843	2-3/8	15/16	.168	9/32	.165
8-32	3	Bot	H3	15763	12	.1843	2-3/8	15/16	.168	9/32	.165
10-24	3	Plug	H2	15764	12	.2170	2-1/2	1	.255	5/16	.191
10-24	3	Plug	H3	15770	12	.2170	2-1/2	1	.255	5/16	.191
10-24	3	Bot	H2	15765	12	.2170	2-1/2	1	.255	5/16	.191
10-24	3	Bot	H3	15771	12	.2170	2-1/2	1	.255	5/16	.191
10-32	3	Plug	H2	15772	12	.2103	2-1/2	1	.255	5/16	.191
10-32	3	Plug	H3	15774	12	.2103	2-1/2	1	.255	5/16	.191
10-32	3	Bot	H2	15773	12	.2103	2-1/2	1	.255	5/16	.191
10-32	3	Bot	H3	15775	12	.2103	2-1/2	1	.255	5/16	.191

Tap Size & TPI	No. of Flutes	Cham Type	P.D. Limits	EDP No	Pkg Qty	Basic Pitch Dia.	Overall Length A	Thread Length B	Shank Dia. C	Square Length D	Square Size E
1/4-20	3	Plug	H2	15784	12	.2825	2-22/32	1-1/8	.318	3/8	.238
1/4-20	3	Plug	H3	15790	12	.2825	2-22/32	1-1/8	.318	3/8	.238
1/4-20	3	Bot	H2	15785	12	.2825	2-22/32	1-1/8	.318	3/8	.238
1/4-20	3	Bot	H3	15791	12	.2825	2-22/32	1-1/8	.318	3/8	.238
1/4-28	3	Plug	H2	15792	12	.2732	2-22/32	1-1/8	.318	3/8	.238
1/4-28	3	Plug	H3	15794	12	.2732	2-22/32	1-1/8	.318	3/8	.238
1/4-28	3	Bot	H2	15793	12	.2732	2-22/32	1-1/8	.318	3/8	.238
1/4-28	3	Bot	H3	15795	12	.2732	2-22/32	1-1/8	.318	3/8	.238
5/16-18	4	Plug	H3	15800	12	.3486	2-15/16	1-1/4	.381	7/16	.286
5/16-18	4	Bot	H3	15801	12	.3486	2-15/16	1-1/4	.381	7/16	.286
5/16-24	4	Plug	H2	15804	12	.3395	2-15/16	1-1/4	.381	7/16	.286
5/16-24	4	Plug	H3	15810	12	.3395	2-15/16	1-1/4	.381	7/16	.286
5/16-24	4	Plug	H2	15805	12	.3395	2-15/16	1-1/4	.381	7/16	.286
5/16-24	4	Bot	H3	15811	12	.3395	2-15/16	1-1/4	.381	7/16	.286
3/8-16	4	Bot	H3	15812	12	.4156	3-3/8	1-21/32	.367	7/16	.275
3/8-16	4	Bot	H3	15813	12	.4156	3-3/8	1-21/32	.367	7/16	.275
3/8-24	4	Plug	H2	15820	12	.4020	3-5/32	1-7/16	.323	13/32	.242
3/8-24	4	Plug	H3	15822	12	.4020	3-5/32	1-7/16	.323	13/32	.242
3/8-24	4	Bot	H2	15821	12	.4020	3-5/32	1-7/16	.323	13/32	.242
3/8-24	4	Bot	H3	15823	12	.4020	3-5/32	1-7/16	.323	13/32	.242
7/16-14	4	Plug	H3	15824	12	.4839	3-19/32	1-21/32	.429	1/2	.322
7/16-14	4	Bot	H3	15825	12	.4839	3-19/32	1-21/32	.429	1/2	.322
7/16-20	4	Plug	H3	15832	12	.4700	3-3/8	1-21/32	.367	7/16	.275
7/16-20	4	Bot	H3	15833	12	.4700	3-3/8	1-21/32	.367	7/16	.275
1/2-13	4	Plug	H3	15840	12	.5499	3-13/16	1-13/16	.480	9/16	.360
1/2-13	4	Bot	H3	15841	12	.5499	3-13/16	1-13/16	.480	9/16	.360
1/2-20	4	Plug	H3	15844	12	.5325	3-19/32	1-13/32	.429	1/2	.322
1/2-20	4	Bot	H3	15845	12	.5325	3-19/32	1-21/32	.429	1/2	.322