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Besly
Special Purpose
Taps for Cast Iron

High Speed Steel
Ground Thread

Straight Flute
4 Flute


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

Catalog Number: 4111C

Besly Special Purpose Taps for Cast Iron

These Besly Special Purpose Taps are surface treated to resist the abrasiveness of cast iron, and have controlled straight cutting faces for efficient tapping of true cast iron and other brittle metals.

Please call 800 435-2965 for current net pricing.

Note: Click the EDP No to check availability.

   
All dimensions are in inches.
  Besly Special Purpose
Taps for Cast Iron
Catl No. 4111C
Fractional Sizes
 
  Besly Surface Treatments Besly Drill Selector
Tap Size
& TPI
No. of Flutes Chamfer Type P.D. Limits Surface Treat 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 4 Plug H3  55 11834 12 .2175 2-1/2 1 .255 5/16 .191
1/4-20 4 Plug H5  55 11840 12 .2175 2-1/2 1 .255 5/16 .191
1/4-20 4 Bot H3  55 11835 12 .2175 2-1/2 1 .255 5/16 .191
1/4-20 4 Bot H5  55 11841 12 .2175 2-1/2 1 .255 5/16 .191
1/4-28 4 Plug H3  55 11934 12 .2268 2-1/2 1 .255 5/16 .191
1/4-28 4 Plug H4  55 11940 12 .2268 2-1/2 1 .255 5/16 .191
1/4-28 4 Bot H3  55 11935 12 .2268 2-1/2 1 .255 5/16 .191
1/4-28 4 Bot H4  55 11941 12 .2268 2-1/2 1 .255 5/16 .191
5/16-18 4 Plug H3  55 12043 12 .2764 2-32/32 1-1/8 .318 3/8 .238
5/16-18 4 Plug H5  55 12045 12 .2764 2-23/32 1-1/8 .318 3/8 .238
5/16-18 4 Bot H3  55 12044 12 .2764 2-23/32 1-1/8 .318 3/8 .238
5/16-18 4 Bot H5  55 12050 12 .2764 2-23/32 1-1/8 .318 3/8 .238
5/16-24 4 Plug H3  55 12140 12 .2854 2-23/32 1-1/8 .318 3/8 .238
5/16-24 4 Plug H4  55 12142 12 .2854 2-23/32 1-1/8 .318 3/8 .238
5/16-24 4 Bot H3  55 12141 12 .2854 2-23/32 1-1/8 .318 3/8 .238
5/16-24 4 Bot H4  55 12143 12 .2854 2-23/32 1-1/8 .318 3/8 .238
3/8-16 4 Plug H3  55 12245 12 .3344 2-15/16 1-1/4 .381 7/16 .286
3/8-16 4 Plug H5  55 12251 12 .3344 2-15/16 1-1/4 .381 7/16 .286
3/8-16 4 Bot H3  55 12250 12 .3344 2-15/16 1-1/4 .381 7/16 .286
3/8-16 4 Bot H5  55 12252 12 .3344 2-15/16 1-1/4 .381 7/16 .286
3/8-24 4 Plug H3  55 12333 12 .3479 2-15/16 1-1/4 .381 7/16 .286
3/8-24 4 Plug H4  55 12335 12 .3479 2-15/16 1-1/4 .381 7/16 .286
3/8-24 4 Bot H3  55 12334 12 .3479 2-15/16 1-1/4 .381 7/16 .286
3/8-24 4 Bot H4  55 12340 12 .3479 2-15/16 1-1/4 .381 7/16 .286
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Tap Size
& TPI
No. of Flutes Chamfer Type P.D. Limits Surface Treat EDP No Pkg Qty Basic Pitch Dia. Overall Length
A
Thread Length
B
Shank Dia.
C
Square Length
D
Square Size
E
7/16-14 4 Plug H3  55 12425 12 .3911 3-5/32 1-7/16 .323 13/32 .242
7/16-14 4 Plug H5  55 12431 12 .3911 3-5/32 1-7/16 .323 13/32 .242
7/16-14 4 Bot H3  55 12430 12 .3911 3-5/32 1-7/16 .323 13/32 .242
7/16-14 4 Bot H5  55 12432 12 .3911 3-5/32 1-7/16 .323 13/32 .242
7/16-20 4 Plug H3  55 12504 12 .4050 3-5/32 1-7/16 .323 13/32 .242
7/16-20 4 Plug H5  55 12510 12 .4050 3-5/32 1-7/16 .323 13/32 .242
7/16-20 4 Bot H3  55 12505 12 .4050 3-5-32 1-7/16 .323 13/32 .242
7/16-20 4 Bot H5  55 12511 12 .4050 3-5/32 1-7/16 .323 13/32 .242
1/2-13 4 Plug H3  55 12633 12 .4500 3-3/8 1-21/32 .367 7/16 .275
1/2-13 4 Plug H5  55 12635 12 .4500 3-3/8 1-21/32 .367 7/16 .275
1/2-13 4 Bot H3  55 12634 12 .4500 3-3/8 1-21/32 .367 7/16 .275
1/2-13 4 Bot H5  55 12640 12 .4500 3-3/8 1-21/32 .367 7/16 .275
1/2-20 4 Plug H3  55 12712 12 .4675 3-3/8 1-21/32 .367 7/16 .275
1/2-20 4 Plug H5  55 12714 12 .4675 3-3/8 1-21/32 .367 7/16 .275
1/2-20 4 Bot H3  55 12713 12 .4675 3-3/8 1-21/32 .367 7/16 .275
1/2-20 4 Bot H5  55 12715 12 .4675 3-3/8 1-21/32 .367 7/16 .275
5/8-11 4 Plug H3  55 12895 3 .5660 3-13/16 1-11/16 .480 9/16 .360
5/8-11 4 Bot H3  55 12900 3 .5660 3-13/16 1-13/16 .480 9/16 .360
5/8-18 4 Plug H3  55 12945 3 .5889 3-13/16 1-13/16 .480 9/16 .360
5/8-18 4 Bot H3  55 12950 3 .5889 3-13/16 1-13/16 .480 9/16 .360
3/4-10 4 Plug H3  55 13060 3 .6850 4-1/2 2 .590 11/16 .442
3/4-10 4 Bot H3  55 13061 3 .6850 4-1/2 2 .590 11/16 .442
3/4-16 4 Plug H3  55 13091 3 .7094 4-1/2 2 .590 11/16 .442
3/4-16 4 Bot H3  55 13092 3 .7094 4-1/2 2 .590 11/16 .442
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