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Besly 
Modern Application Taps 
for Stainless Steel

Special High Vanadium
Premium Steel (HSSE)

Spiral Point
2, 3 and 4 Flute


Machine Screw Sizes:
3 | 4 | 5 | 6 | 8 | 10 | 12

Fractional Sizes:
1/4 | 5/16 | 3/8 | 7/16 | 1/2 | 9/16 | 5/8 | 3/4 | 7/8 | 1

 Catalog Number: 6013A

Besly Modern Application Taps for Stainless SteelBesly Modern Application Taps for Stainless Steel are for tough to machine Stainless Steel Alloys and Precipitation Hardening (PH) Stainless Steels. Designed for use in blind holes, a spiral flute is used to pull the chips out of the holes, reducing the chance of torn or rough threads. These taps are surface treated to reduce loading and galling. They are available  with bottom (1-2 thread) or modified-bottom (2-4 thread) chamfers.

Please call 800 435-2965 for current prices.

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All dimensions are in inches.                 
  Besly Modern Application
 Taps for Stainless Steel
Catl No. 6013A
Machine Screw Sizes		    
 
Besly Surface Treatments Besly Drill Selector
Tap Size
& TPI		 No. of Flutes Cham Type* P.D. Limits Surface Treat EDP No Pkg Qty Nominal Size
0d1		 Overall Length
I1		 Thread Length
I2		 Thread
+ Neck
I3		 Shank Dia.
0d2		 Square Size
q
3-48 2 Mod H2 47 15968 12 #3 1.812 .312 .500 .141 .110
4-40 2 Mod H2 47 15977 12 #4 1.875 .312 .562 .141 .110
4-40 2 Mod H3 47 15978 12 #4 1.875 .312 .562 .141 .110
4-40 2 Mod H4 47 15979 12 #4 1.875 .312 .562 .141 .110
4-40 2 Mod H5 47 15987 12 #4 1.875 .312 .562 .141 .110
4-40 2 Mod H6 47 15988 12 #4 1.875 .312 .562 .141 .110
4-40 2 Bot H2 47 15969 12 #4 1.750 .250 .438 .141 .110
4-40 2 Bot H3 47 15973 12 #4 1.750 .250 .438 .141 .110
4-40 2 Bot H5 47 15976 12 #4 1.812 .312 .500 .141 .110
4-48 2 Mod H2 47 15992 12 #4 1.875 .312 .562 .141 .110
4-48 3 Mod H4 47 15997 12 #4 1.785 .312 .562 .141 .110
4-48 2 Bot H2 47 15989 12 #4 1.875 .312 .562 .141 .110
5-40 3 Mod H2 47 15999 12 #5 2.000 .375 .688 .141 .110
5-40 3 Bot H2 47 15998 12 #5 2.000 .375 .688 .141 .110
6-32 3 Mod H2 47 16008 12 #6 2.000 .375 .688 .141 .110
6-32 3 Mod H3 47 16009 12 #6 2.000 .375 .688 .141 .110
6-32 3 Mod H4 47 16019 12 #6 2.000 .375 .688 .141 .110
6-32 3 Mod H5 47 16008 12 #6 2.000 .375 .688 .141 .110
6-32 3 Mod H6 47 16009 12 #6 2.000 .375 .688 .141 .110
6-32 3 Mod H7 47 16019 12 #6 2.000 .375 .688 .141 .110
6-32 3 Bot H2 47 16004 12 #6 2.000 .375 .688 .141 .110
6-32 3 Bot H3 47 16006 12 #6 2.000 .375 .688 .141 .110
6-32 3 Bot H5 47 16007 12 #6 2.000 .375 .688 .141 .110
6-40 3 Mod H2 47 16009 12 #6 2.000 .375 .688 .141 .110
6-40 3 Mod H3 47 16019 12 #6 2.000 .375 .688 .141 .110
6-40 3 Bot H2 47 16019 12 #6 2.000 .375 .688 .141 .110
6-40 3 Bot H3 47 16008 12 #6 2.000 .375 .688 .141 .110
  * Mod = Modified-Bottom (2-4 threads) Go to the top of this page.
Tap Size
& TPI		 No. of Flutes Cham Type* P.D. Limits Surface Treat EDP No Pkg Qty Nominal Size
0d1		 Overall Length
I1		 Thread Length
I2		 Thread
+ Neck
I3		 Shank Dia.
0d2		 Square Size
q
8-32 3 Mod H2 47 16286 12 #8 2.125 .375 .750 .168 .131
8-32 3 Mod H3 47 16287 12 #8 2.125 .375 .750 .168 .131
8-32 3 Mod H4 47 16288 12 #8 2.125 .375 .750 .168 .131
8-32 3 Mod H5 47 16289 12 #8 2.125 .375 .750 .168 .131
8-32 3 Mod H6 47 16290 12 #8 2.125 .375 .750 .168 .131
8-32 3 Mod H7 47 16291 12 #8 2.125 .375 .750 .168 .131
8-32 3 Bot H2 47 16380 12 #8 2.125 .375 .750 .168 .131
8-32 3 Bot H3 47 16381 12 #8 2.125 .375 .750 .168 .131
8-32 3 Bot H4 47 16382 12 #8 2.125 .375 .750 .168 .131
10-24 3 Mod H3 47 16292 12 #10 2.375 .500 .875 .194 .152
10-24 3 Mod H4 47 16293 12 #10 2.375 .500 .875 .194 .152
10-24 3 Mod H5 47 16294 12 #10 2.375 .500 .875 .194 .152
10-24 3 Mod H6 47 16295 12 #10 2.375 .500 .875 .194 .152
10-24 3 Mod H7 47 16043 12 #10 2.375 .500 .875 .194 .152
10-24 3 Bot H3 47 16383 12 #10 2.375 .500 .875 .194 .152
10-24 3 Bot H5 47 16384 12 #10 2.375 .500 .875 .194 .152
10-32 3 Mod H2 47 16046 12 #10 2.375 .500 .875 .194 .152
10-32 3 Mod H3 47 16047 12 #10 2.375 .500 .875 .194 .152
10-32 3 Mod H4 47 16048 12 #10 2.375 .500 .875 .194 .152
10-32 3 Mod H5 47 16049 12 #10 2.375 .500 .875 .194 .152
10-32 3 Mod H6 47 16048 12 #10 2.375 .500 .875 .194 .152
10-32 3 Mod H7 47 16049 12 #10 2.375 .500 .875 .194 .152
10-32 3 Bot H3 47 16044 12 #10 2.375 .500 .875 .194 .152
10-32 3 Bot H5 47 16045 12 #10 2.375 .500 .875 .194 .152
12-24 3 Mod H3 47 16061 12 #12 2.375 .500 .938 .220 .165
12-28 3 Mod H3 47 16062 12 #12 2.375 .500 .938 .220 .165
 * Mod = Modified-Bottom (2-4 threads) Go to the top of this page.
  




 


All dimensions are in inches.                 
  Besly Modern Application
 Taps for Stainless Steel
Catl No. 6013A
Fractional Sizes		    
 
Besly Surface Treatments Besly Drill Selector
Tap Size
& TPI		 No. of Flutes Cham Type* P.D. Limits Surface Treat EDP No Pkg Qty Nominal Size
0d1		 Overall Length
I1		 Thread Length
I2		 Thread
+ Neck
I3		 Shank Dia.
0d2		 Square Size
q
1/4-20 3 Mod H2 47 16305 12 1/4 2.500 .625 1.000 .255 .191
1/4-20 3 Mod H3 47 16306 12 1/4 2.500 .625 1.000 .255 .191
1/4-20 3 Mod H5 47 16307 12 1/4 2.500 .625 1.000 .255 .191
1/4-20 3 Mod H7 47 16308 12 1/4 2.500 .625 1.000 .255 .191
1/4-20 3 Bot H3 47 16387 12 1/4 2.500 .625 1.000 .255 .191
1/4-20 3 Bot H5 47 16388 12 1/4 2.500 .625 1.000 .255 .191
1/4-28 3 Mod H2 47 16309 12 1/4 2.500 .625 1.000 .255 .191
1/4-28 3 Mod H3 47 16310 12 1/4 2.500 .625 1.000 .255 .191
1/4-28 3 Mod H4 47 16311 12 1/4 2.500 .625 1.000 .255 .191
1/4-28 3 Mod H5 47 16312 12 1/4 2.500 .625 1.000 .255 .191
1/4-28 3 Mod H6 47 16313 12 1/4 2.500 .625 1.000 .255 .191
1/4-28 3 Mod H7 47 16314 12 1/4 2.500 .625 1.000 .255 .191
1/4-28 3 Bot H3 47 16389 12 1/4 2.500 .625 1.000 .255 .191
1/4-28 3 Bot H5 47 16390 12 1/4 2.500 .625 1.000 .255 .191
5/16-18 3 Mod H3 47 16315 12 5/16 2.719 .688 1.125 .318 .238
5/16-18 3 Mod H5 47 16316 12 5/16 2.719 .688 1.125 .318 .238
5/16-18 3 Mod H7 47 16317 12 5/16 2.719 .688 1.125 .318 .238
5/16-18 3 Bot H3 47 16391 12 5/16 2.719 .688 1.125 .318 .238
5/16-18 3 Bot H5 47 16392 12 5/16 2.719 .688 1.125 .318 .238
5/16-24 3 Mod H3 47 16318 12 5/16 2.719 .688 1.125 .318 .238
5/16-24 3 Mod H4 47 16319 12 5/16 2.719 .688 1.125 .318 .238
5/16-24 3 Mod H5 47 16320 12 5/16 2.719 .688 1.125 .318 .238
5/16-24 3 Mod H6 47 16321 12 5/16 2.719 .688 1.125 .318 .238
5/16-24 3 Mod H7 47 16322 12 5/16 2.719 .688 1.125 .318 .238
5/16-24 3 Bot H3 47 16393 12 5/16 2.719 .688 1.125 .318 .238
5/16-24 3 Bot H5 47 16394 12 5/16 2.719 .688 1.125 .318 .238
 * Mod = Modified-Bottom (2-4 threads) Go to the top of this page.
Tap Size
& TPI		 No. of Flutes Cham Type* P.D. Limits Surface Treat EDP No Pkg Qty Nominal Size
0d1		 Overall Length
I1		 Thread Length
I2		 Thread
+ Neck
I3		 Shank Dia.
0d2		 Square Size
q
3/8-16 3 Mod H3 47 16323 12 3/8 2.938 .750 1.250 .381 .286
3/8-16 3 Mod H5 47 16324 12 3/8 2.938 .750 1.250 .381 .286
3/8-16 3 Mod H7 47 16325 12 3/8 2.938 .750 1.250 .381 .286
3/8-16 3 Bot H3 47 16395 12 3/8 2.938 .750 1.250 .381 .286
3/8-16 3 Bot H5 47 16396 12 3/8 2.938 .750 1.250 .381 .286
3/8-16 3 Bot H7 47 16397 12 3/8 2.938 .750 1.250 .381 .286
3/8-24 3 Mod H3 47 16326 12 3/8 2.938 .750 1.250 .381 .286
3/8-24 3 Mod H4 47 16327 12 3/8 2.938 .750 1.250 .381 .286
3/8-24 3 Mod H5 47 16328 12 3/8 2.938 .750 1.250 .381 .286
3/8-24 3 Mod H6 47 16329 12 3/8 2.938 .750 1.250 .381 .286
3/8-24 3 Mod H7 47 16333 12 3/8 2.938 .750 1.250 .381 .286
3/8-24 3 Bot H3 47 16398 12 3/8 2.938 .750 1.250 .381 .286
3/8-24 3 Bot H4 47 16399 12 3/8 2.938 .750 1.250 .381 .286
3/8-24 3 Bot H5 47 16400 12 3/8 2.938 .750 1.250 .381 .286
7/16-14 3 Mod H3 47 16334 12 7/16 3.156 .875 - .323 .242
7/16-14 3 Mod H5 47 16336 12 7/16 3.156 .875 - .323 .242
7/16-14 3 Mod H7 47 16337 12 7/16 3.156 .875 - .323 .242
7/16-14 3 Bot H3 47 16401 12 7/16 3.156 .875 - .323 .242
7/16-14 3 Bot H5 47 16402 12 7/16 3.156 .875 - .323 .242
7/16-20 3 Mod H3 47 16338 12 7/16 3.156 .875 - .323 .242
7/16-20 3 Mod H5 47 16339 12 7/16 3.156 .875 - .323 .242
7/16-20 3 Mod H6 47 16340 12 7/16 3.156 .875 - .323 .242
7/16-20 3 Mod H7 47 16341 12 7/16 3.156 .875 - .323 .242
7/16-20 3 Bot H3 47 16403 12 7/16 3.156 .875 - .323 .242
7/16-20 3 Bot H5 47 16404 12 7/16 3.156 .875 - .323 .242
  * Mod = Modified-Bottom (2-4 threads) Go to the top of this page.
Tap Size
& TPI		 No. of Flutes Cham Type* P.D. Limits Surface Treat EDP No Pkg Qty Nominal Size
0d1		 Overall Length
I1		 Thread Length
I2		 Thread
+ Neck
I3		 Shank Dia.
0d2		 Square Size
q
1/2-13 3 Mod H3 47 16346 12 1/2 3.375 .938 - .367 .275
1/2-13 3 Mod H5 47 16347 12 1/2 3.375 .938 - .367 .275
1/2-13 3 Mod H7 47 16348 12 1/2 3.375 .938 - .367 .275
1/2-13 3 Bot H3 47 16405 12 1/2 3.375 .938 - .367 .275
1/2-13 3 Bot H5 47 16406 12 1/2 3.375 .938 - .367 .275
1/2-20 3 Mod H3 47 16349 12 1/2 3.375 .938 - .367 .275
1/2-20 3 Mod H5 47 16350 12 1/2 3.375 .938 - .367 .275
1/2-20 3 Mod H7 47 16351 12 1/2 3.375 .938 - .367 .275
1/2-20 3 Bot H3 47 16352 12 1/2 3.375 .938 - .367 .275
1/2-20 3 Bot H4 47 16407 12 1/2 3.375 .938 - .367 .275
1/2-20 3 Bot H5 47 16408 12 1/2 3.375 .938 - .367 .275
9/16-12 3 Mod H3 47 16353 3 9/16 3.594 1.000 - .429 .322
9/16-12 3 Bot H3 47 16409 3 9/16 3.594 1.000 - .429 .322
9/16-18 3 Mod H3 47 16354 3 9/16 3.594 1.000 - .429 .322
9/16-18 3 Bot H3 47 16411 3 9/16 3.594 1.000 - .429 .322
5/8-11 3 Mod H3 47 16356 3 5/8 3.812 1.094 - .480 .360
5/8-11 3 Mod H5 47 16357 3 5/8 3.812 1.094 - .480 .360
5/8-11 3 Mod H7 47 16358 3 5/8 3.812 1.094 - .480 .360
5/8-11 3 Bot H3 47 16412 3 5/8 3.812 1.094 - .480 .360
5/8-11 3 Bot H5 47 16413 3 5/8 3.812 1.094 - .480 .360
5/8-18 3 Mod H3 47 16359 3 5/8 3.812 1.094 - .480 .360
5/8-18 3 Mod H5 47 16360 3 5/8 3.812 1.094 - .480 .360
5/8-18 3 Mod H6 47 16362