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Besly
Special Purpose
Spiral Pointed
STI Taps

High Speed Steel
Ground Thread

Spiral Pointed
2 Flute


Machine Screw Sizes:
4 | 6 | 8 | 10

Fractional Sizes:
1/4

Catalog Number: 4126

Besly Special Purpose STI Spiral Pointed Taps

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

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
Spiral Pointed
STI
Taps
Catl No. 4126
Machine Screw 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
4-40 2 Plug H2   15853 12 .1283 2 11/16 .141 3/16 .110
6-32 2 Plug H2   15860 12 .1583 2-3/8 7/8 .141 1/4 .152
6-32 2 Plug H3   15861 12 .1583 2-3/8 7/8 .141 1/4 .152
8-32 2 Plug H2   15684 12 .1843 2-3/8 15/16 .168 9/32 .165
8-32 2 Plug H3   15865 12 .1843 2-3/8 15/16 .168 9/32 .165
10-24 2 Plug H2   15870 12 .2170 2-1/2 1 .255 5/16 .191
10-32 2 Plug H2   15872 12 .2103 2-1/2 1 .255 5/16 .191
10-32 2 Plug H3   15873 12 .2103 2-1/2 1 .255 5/16 .191
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All dimensions are in inches.
  Besly Special Purpose
Spiral Pointed
STI
Taps
Catl No. 4126
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 2 Plug H2   15880 12 .2825 2-22/32 1-1/8 .318 3/8 .238
1/4-20 2 Plug H3   15881 12 .2825 2-22/32 1-1/8 .318 3/8 .238
1/4-28 2 Plug H2   15882 12 .2732 2-22/32 1-1/8 .318 3/8 .238
1/4-28 2 Plug H3   15883 12 .2732 2-22/32 1-1/8 .318 3/8 .238
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