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  HeliCoil Inserts, Kato Inserts, ReCoil Inserts  
      Free Running (UNC)  
      Free Running (UNF)  
      Screw-Locking (UNC)  
      Screw-Locking (UNF)  
       Metric Inserts  
       Tangless Inserts  
       Thread Repair Kits  
      

 

 

 

 

 

Screw Locking UNF Kato Helical Inserts

Precision engineering, exacting manufacturing standards, and stringent quality control procedures assure a high quality product that meets or exceeds all applicable military and aerospace standards

Lower Pricing than competitive inserts!
Meet or exceed all applicable military, aerospace and commercial standards. Full Traceability!
Complete range of locking and free-running sizes, bulk or strip, unified or metric.
CoilThread Inserts are available in Bulk and on Strip Feed Reels...
Providing flexibility for any production set-up.
Design and Application Assistance: Over 25 years of manufacturing and engineering experience.
Full line of taps, gages, hand tools, air tools, and electric tools available...100% interchangeable and will install HeliCoil Inserts, Microdot, Recoil and all other major brands of inserts.
The Kato Guarantee: Try Kato CoilThread Inserts...You have nothing to lose!.

 Get product specs - click here:

TANGLESS® is a registered trademark of Advanex Inc.
HeliCoil® is a registered trademark of Emhart Teknologies, LLC.
Recoil® is a registered trademark of Alcoa.


UNF Screw Lock Inserts
Setup Data


 

HeliCoil Insert Cross Ref. Military Thread Length Alu. Drill Steel Drill Drill Depth A Drill Depth B Csk. Min D Csk. Max D Thread Depth C Outside Dia. Min Outside Dia. Max
3591-2CN164 21209-F0810 8-36 0.164 #17 #16 0.413 0.275 0.2 0.23 0.19 0.204 0.224
3591-2CN246 21209-F0815 8-36 0.246 #17 #16 0.495 0.357 0.2 0.23 0.27 0.204 0.224
3591-2CN328 21209-F0820 8-36 0.328 #17 #16 0.577 0.439 0.2 0.23 0.36 0.204 0.224
3591-03CN099 21209-F0310 3-56 0.099 #37 #36 0.256 0.17 0.11 0.14 0.12 0.131 0.146
3591-03CN148 21209-F0315 3-56 0.148 #37 #36 0.305 0.219 0.11 0.14 0.17 0.131 0.146
3591-03CN198 21209-F0320 3-56 0.198 #37 #36 0.355 0.269 0.11 0.14 0.22 0.131 0.146
3591-4CN250 21209-F4-10 1/4-28 0.25 G 6.7mm 0.589 0.393 0.29 0.32 0.29 0.306 0.326
3591-4CN375 21209-F4-15 1/4-28 0.375 G 6.7mm 0.714 0.518 0.29 0.32 0.41 0.306 0.326
3591-4CN500 21209-F4-20 1/4-28 0.5 G 6.7mm 0.839 0.643 0.29 0.32 0.54 0.306 0.326
3591-5CN312 21209-F5-10 5/16-24 0.312 21/64 21/64 0.718 0.479 0.36 0.39 0.35 0.38 0.4
3591-5CN469 21209-F5-15 5/16-24 0.469 21/64 21/64 0.874 0.636 0.36 0.39 0.51 0.38 0.4
3591-5CN625 21209-F5-20 5/16-24 0.625 21/64 21/64 1.03 0.792 0.36 0.39 0.67 0.38 0.4
3591-06CN138 21209-F0610 6-40 0.138 #26 #25 0.357 0.238 0.17 0.2 0.16 0.173 0.193
3591-06CN207 21209-F0615 6-40 0.207 #26 #25 0.426 0.07 0.17 0.2 0.23 0.173 0.193
3591-06CN276 21209-F0615 6-40 0.276 #26 #25 0.495 0.376 0.17 0.2 0.3 0.173 0.193
3591-6CN375 21209-F6-10 3/8-24 0.375 25/64 25/64 0.625 0.542 0.42 0.45 0.42 0.448 0.468
3591-6CN562 21209-F6-15 3/8-24 0.562 25/64 25/64 0.812 0.729 0.42 0.45 0.6 0.448 0.468
3591-6CN750 21209-F6-20 3/8-24 0.75 25/64 25/64 1 0.917 0.42 0.45 0.79 0.448 0.468
3591-7CN438 21209-F7-10 7/16-20 0.438 29/64 29/64 0.738 0.638 0.5 0.53 0.49 0.524 0.549
3591-7CN656 21209-F7-15 7/16-20 0.656 29/64 29/64 0.957 0.856 0.5 0.53 0.71 0.524 0.549
3591-7CN875 21209-F7-20 7/16-20 0.875 29/64 29/64 1.176 1.075 0.5 0.53 0.93 0.524 0.549
3591-8CN1000 21209-F8-20 1/2-20 1 33/64 33/64 1.3 1.2 0.56 0.59 1.05 0.592 0.617
3591-8CN500 21209-F8-10 1/2-20 0.5 33/64 33/64 0.8 0.7 0.56 0.59 0.55 0.592 0.617
3591-8CN750 21209-F8-15 1/2-20 0.75 33/64 33/64 1.05 0.95 0.56 0.59 0.8 0.592 0.617

 Get product specs - click here:

 

KATO Part # MS/MA Number HeliCoil Part #
TLF-03C-0099 MS21209-F0310 3591-03CN-0099
TLF-03C-0148 MS21209-F0315 3591-03CN-0148
TLF-03C-0198 MS21209-F0320 3591-03CN-0198
TLF-03C-0248 MS21209-F0325 3591-03CN-0248
TLF-03C-0297 MS21209-F0330 3591-03CN-0297
TLF-04C-0112 MS21209-F0410 3591-04CN-0112
TLF-04C-0168 MS21209-F0415 3591-04CN-0168
TLF-04C-0168Y MS21209-F0415P 3591-04CNY-0168
TLF-04C-0224 MS21209-F0420 3591-04CN-0224
TLF-04C-0280 MS21209-F0425 3591-04CN-0280
TLF-04C-0336 MS21209-F0430 3591-04CN-0336
TLF-06C-0138 MS21209-F0610 3591-06CN-0138
TLF-06C-0207 MS21209-F0615 3591-06CN-0207
TLF-06C-0207W MS21209-F0615L 3591-06CNW-0207
TLF-06C-0276 MS21209-F0620 3591-06CN-0276
TLF-06C-0276W MS21209-F0620L 3591-06CNW-0276
TLF-06C-0276Y MS21209-F0620P 3591-06CNY-0276
TLF-06C-0345 MS21209-F0625 3591-06CN-0345
TLF-06C-0414 MS21209-F0630 3591-06CN-0414
TLF-2C-0164 MS21209-F0810 3591-2CN-0164
TLF-2C-0164SF MS21209-F0810 3591-2CN-0164S
TLF-2C-0246 MS21209-F0815 3591-2CN-0246
TLF-2C-0246W MS21209-F0815L 3591-2CNW-0246
TLF-2C-0328 MS21209-F0820 3591-2CN-0328
TLF-2C-0410 MS21209-F0825 3591-2CN-0410
TLF-3C-0190 MS21209-F1-10 3591-3CN-0190
TLF-3C-0190SF MS21209-F1-10 3591-3CN-0190S
TLF-3C-0190W MS21209-F1-10L 3591-3CNW-0190
TLF-3C-0190WSF MS21209-F1-10L 3591-3CNW-0190S
TLF-3C-0190Y MS21209-F1-10P 3591-3CNY-0190
TLF-3C-0285 MS21209-F1-15 3591-3CN-0285
TLF-3C-0285SF MS21209-F1-15 3591-3CN-0285S
TLF-3C-0285W MS21209-F1-15L 3591-3CNW-0285
TLF-3C-0285WSF MS21209-F1-15L 3591-3CNW-0285S
TLF-3C-0285Y MS21209-F1-15P 3591-3CNY-0285
TLF-3C-0380 MS21209-F1-20 3591-3CN-0380
TLF-3C-0380SF MS21209-F1-20 3591-3CN-0380S
TLF-3C-0380W MS21209-F1-20L 3591-3CNW-0380
TLF-3C-0380WSF MS21209-F1-20L 3591-3CNW-0380S
TLF-3C-0380Y MS21209-F1-20P 3591-3CNY-0380
TLF-3C-0475 MS21209-F1-25 3591-3CN-0475
TLF-3C-0475W MS21209-F1-25L 3591-3CNW-0475
TLF-3C-0475Y MS21209-F1-25P 3591-3CNY-0475
TLF-3C-0570 MS21209-F1-30 3591-3CN-0570
TLF-3C-0570W MS21209-F1-30L 3591-3CNW-0570
TLF-3C-0570Y MS21209-F1-30P 3591-3CNY-0570
TLF-4C-0250 MS21209-F4-10 3591-4CN-0250
TLF-4C-0250SF MS21209-F4-10 3591-4CN-0250S
TLF-4C-0250W MS21209-F4-10L 3591-4CNW-0250
TLF-4C-0250Y MS21209-F4-10P 3591-4CNY-0250
TLF-4C-0375 MS21209-F4-15 3591-4CN-0375
TLF-4C-0375SF MS21209-F4-15 3591-4CN-0375S
TLF-4C-0375W MS21209-F4-15L 3591-4CNW-0375
TLF-4C-0375Y MS21209-F4-15P 3591-4CNY-0375
TLF-4C-0500 MS21209-F4-20 3591-4CN-0500
TLF-4C-0500SF MS21209-F4-20 3591-4CN-0500S
TLF-4C-0500W MS21209-F4-20L 3591-4CNW-0500
TLF-4C-0500WSF MS21209F4-20L 3591-4CNW-0500S
TLF-4C-0500Y MS21209-F4-20P 3591-4CNY-0500
TLF-4C-0625 MS21209-F4-25 3591-4CN-0625
TLF-4C-0625W MS21209-F4-25L 3591-4CNW-0625
TLF-4C-0625Y MS21209-F4-25P 3591-4CNY-0625
TLF-4C-0750 MS21209-F4-30 3591-4CN-0750
TLF-4C-0750Y MS21209-F4-30P 3591-4CNY-0750
TLF-5C-0312 MS21209-F5-10 3591-5CN-0312
TLF-5C-0312SF MS21209-F5-10 3591-5CN-0312S
TLF-5C-0312W MS21209-F5-10L 3591-5CNW-0312
TLF-5C-0312Y MS21209-F5-10P 3591-5CNY-0312
TLF-5C-0469 MS21209-F5-15 3591-5CN-0469
TLF-5C-0469W MS21209-F5-15L 3591-5CNW-0469
TLF-5C-0469WSF MS21209-F5-15L 3591-5CNW-0469S
TLF-5C-0469Y MS21209-F5-15P 3591-5CNY-0469
TLF-5C-0625 MS21209-F5-20 3591-5CN-0625
TLF-5C-0625SF MS21209-F5-20 3591-5CN-0625S
TLF-5C-0625W MS21209-F5-20L 3591-5CNW-0625
TLF-5C-0625Y MS21209-F5-20P 3591-5CNY-0625
TLF-5C-0781 MS21209-F5-25 3591-5CN-0781
TLF-5C-0938 MS21209-F5-30 3591-5CN-0938
TLF-5C-0938W MS21209-F5-30L 3591-5CNW-0938
TLF-6C-0375 MS21209-F6-10 3591-6CN-0375
TLF-6C-0375W MS21209-F6-10L 3591-6CNW-0375
TLF-6C-0375Y MS21209-F6-10P 3591-6CNY-0375
TLF-6C-0562 MS21209-F6-15 3591-6CN-0562
TLF-6C-0562W MS21209-F6-15L 3591-6CNW-0562
TLF-6C-0562Y MS21209-F6-15P 3591-6CNY-0562
TLF-6C-0750 MS21209-F6-20 3591-6CN-0750
TLF-6C-0750W MS21209-F6-20L 3591-6CNW-0750
TLF-6C-0750Y MS21209-F6-20P 3591-6CNY-0750
TLF-6C-0938 MS21209-F6-25 3591-6CN-0938
TLF-6C-0938Y MS21209-F6-25P 3591-6CNY-0938
TLF-6C-1125 MS21209-F6-30 3591-6CN-1125
TLF-6C-1125Y MS21209-F6-30P 3591-6CNY-1125
TLF-7C-0438 MS21209-F7-10 3591-7CN-0438
TLF-7C-0438W MS21209-F7-10L 3591-7CNW-0438
TLF-7C-0656 MS21209-F7-15 3591-7CN-0656
TLF-7C-0875 MS21209-F7-20 3591-7CN-0875
TLF-7C-1094 MS21209-F7-25 3591-7CN-1094
TLF-7C-1094W MS21209-F7-25L 3591-7CNW-1094
TLF-7C-1312 MS21209-F7-30 3591-7CN-1312
TLF-8C-0500 MS21209-F8-10 3591-8CN-0500
TLF-8C-0500W MS21209-F8-10L 3591-8CNW-0500
TLF-8C-0500Y MS21209-F8-10P 3591-8CNY-0500
TLF-8C-0750 MS21209-F8-15 3591-8CN-0750
TLF-8C-0750Y MS21209-F8-15P 3591-8CNY-0750
TLF-8C-1000 MS21209-F8-20 3591-8CN-1000
TLF-8C-1250 MS21209-F8-25 3591-8CN-1250
TLF-8C-1500 MS21209-F8-30 3591-8CN-1500
TLF-9C-0562 MS21209-F9-10 3591-9CN-0562
TLF-9C-0562W MS21209-F9-10L 3591-9CNW-0562
TLF-9C-0844 MS21209-F9-15 3591-9CN-0844
TLF-10C-0625 MS21209-F1010 3591-10CN-0625
TLF-10C-0625Y MS21209-F1010P 3591-10CNY-0625
TLF-10C-0938 MS21209-F1015 3591-10CN-0938
TLF-10C-0938W MS21209-F1015L 3591-10CNW-0938
TLF-10C-0938Y MS21209-F1015P 3591-10CNY-0938
TLF-12C-0750 MS21209-F1210 3591-12CN-0750
TLF-12C-1125 MS21209-F1215 3591-12CN-1125
TLF-12C-1125Y MS21209-F1215P 3591-12CNY-1125
TLF-12C-1500 MS21209-F1220 3591-12CN-1500
TLF-12C-1500Y MS21209-F1220P 3591-12CNY-1500
TLF-14C-0875 MS21209-F1410 3591-14CN-0875
TLF-14C-1312 MS21209-F1415 3591-14CN-1312
TLF-24C-3000 MS21209-F2420 3591-24CN-3000

 Get product specs - click here:

TANGLESS® is a registered trademark of Advanex Inc.
POP Rivet® is a registered trademark of Emhart Teknologies, LLC.
Recoil® is a registered trademark of Alcoa.