* LAST DIGIT ON PART# WILL DESIGNATE THE GRADE: SEE PREVIOUS PAGES. NPT ON-EDGE INSERTS API THREAD FORM TABLES API V THREAD FORM TABLE AMERICAN STANDARD BUTTRESS 45° X 7° * Obsolescent thread form - See API Spec. 7, 35th Edition, May 1, 1985, Section 9.4 ON EDGE THREADING INSERTS IN CERMET GRADE T-1200A -FOR THE FINEST FINISHED THREADS IN STEEL, STAINLESS STEEL AND SUPER ALLOYS. RUN AT HIGH RPM. TNMA/C - NV TNMA - STRAIGHT THROUGH HOLE TNMC - C’SUNK THROUGH HOLE API & NPT THREADING INSERTS - ON EDGE STYLE Customer must specify radius or flat. T-1200A NPT THREADING INSERTS API 2-STEP THREAD CONNECTION TNMA TNMC - 992 - Bass Tool & Supply, Inc. Houston Email Fax Toll Free www.basstool.com (713) 682-1889
[email protected] (713) 681-4931 800-442-0042 API TYPE STYLE PART # I.C. T TPI TAPER IN/FT. CONNECTION NO. OR SIZE. TNMA INTERNAL 6-020 TNMA EXTERNAL 6-021 TNMC INTERNAL 6-022 TNMC EXTERNAL 6-023 API 8 ROUND TNMA/C-43-8 RD 008* 1/2 3/16 8 3/4 THREADING 8 ROUND TUBING TNMA/C-54-8 RD 028* 5/8 1/4 8 3/4 API 10 ROUND TNMA/C-43-10 RD 010* 1/2 3/16 10 3/4 THREADING 10 ROUND TUBING TNMA/C-54-10 RD 020* 5/8 1/4 10 3/4 API ROTARY SHOULDERED CONNECTION THREADING TNMA/C-55-428 428* 5/8 5/16 4 2 NC23-NC50, 2.3/8-5.1/2 IF TNMA/C-55-438 438* 5/8 5/16 4 3 NC56-NC71 TNMA/C-55-425 425* 5/8 5/16 4 2 5.1/2FH, 6.5/8FH, 6.5/8 REGULAR TNMA/C-55-435 435* 5/8 5/16 4 3 5.1/2 REG., 7.5/8 REG., 8.5/8 REG., TNMA/C-55-42F 42F* 5/8 5/16 4 2 V0.065 TNMA/C-54-530 530* 5/8 1/4 5 3 3.1/2FH, 2.3/8-4.1/2 REGULAR TNMA/C-55-530 531* 5/8 5/16 5 3 TNMA/C-55-4PAC 554* 5/8 5/16 4 1.1/2 AMERICAN OPEN HOLE API BUTTRESS THREADING (FC INDICATES 5° FLANK CLEARANCE) TNMA/C-44-5B75 445* 1/2 1/4 5 3/4 4.1/2-13.3/8 TNMA/C-54-5B75-FC 575* 5/8 1/4 5 3/4 TNMA/C-54-5B1-FC 510* 5/8 1/4 5 1 16 AND LARGER TNMA/C-43-8B75 475* 1/2 3/16 8 3/4 U.S. IMPROVED BUTTRESS API VAM THREADING TNMA/C-54-5VAM 5V-54* 5/8 1/4 5 3/4 5 PITCH V0.055 TNMA/C-43-6VAM 6V-43* 1/2 3/16 6 3/4 6 PITCH V0.055 TNMA/C-54-6VAM 6V-54* 5/8 1/4 6 3/4 6 PITCH V0.055 TNMA/C-43-8VAM 8V-43* 1/2 3/16 8 3/4 8 PITCH V0.055 API EXTREME LINE THREADING TNMA/C-54-5XL12 5XL12* 5/8 1/4 5 1.1/4 8.5/8-10.3/4 TNMA/C-54-6XL15 6XL15* 5/8 1/4 6 1.1/2 5-7.5/8 TNMA/C-54-6XL75 6XL75* 5/8 1/4 6 3/4 - API HUGHES H-90 THREADING TNMA/C-55-H902 902* 5/8 5/16 3.1/2 2 3.1/2-6.5/8 H-90 TNMA/C-55-H903 903* 5/8 5/16 3.1/2 3 7-8.5/8 H-90 TNMA/C-55-H90S 90S* 5/8 5/16 3 1.1/4 2.3/8-3.1/2 SLIMLINE CONN. NUMBER OR SIZE THREAD FORM THREADS PER INCH TAPER INCHES PER FT. ON DIA. PART # NUMBER (NC) STYLE NC 10 V-0.055 6 1.1/2 V0.055 NC 12 V-0.055 6 1.1/2 V0.055 NC 13 V-0.055 6 1.1/2 V0.055 NC 16 V-0.055 6 1.1/2 V0.055 NC 23 V-0.038R 4 2 428 NC 26 V-0.038R 4 2 428 NC 31 V-0.038R 4 2 428 NC 35 V-0.038R 4 2 428 NC 38 V-0.038R 4 2 428 NC 40 V-0.038R 4 2 428 NC 44 V-0.038R 4 2 428 NC 46 V-0.038R 4 2 428 NC 50 V-0.038R 4 2 428 NC 56 V-0.038R 4 3 438 NC 61 V-0.038R 4 3 438 NC 70 V-0.038R 4 3 438 NC 71 V-0.038R 4 3 438 FULL HOLE (FH) STYLE 3.1/2 FH V-0.040 5 3 530 4 FH V-0.065* 4 2 42F/428 4.1/2 FH V-0.040 5 3 530 5.1/2 FH V-0.050 4 2 425 6.5/8 FH V-0.050 4 2 425 INTERNAL FLUSH (IF) STYLE 2.3/8 IF V-0.065* 4 2 42F/428 2.7/8 IF V-0.065* 4 2 42F/428 3.1/2 IF V-0.065* 4 2 42F/428 4 IF V-0.065* 4 2 42F/428 5.1/2 IF V-0.065* 4 2 42F/428 REGULAR (REG.) STYLE 2.3/8 REG V-0.040 5 3 530 2.7/8 REG V-0.040 5 3 530 3.1/2 REG V-0.040 5 3 530 4.1/2 REG V-0.040 5 3 530 5.1/2 REG V-0.050 4 3 435 6.5/8 REG V-0.050 4 2 425 7.5/8 REG V-0.050 4 3 435 8.5/8 REG V-0.050 4 3 435 DESCRIPTION PART# PIPE SIZE TPI TPF IC T TNMA-43-8NPT-EXT 6-021-8NPT 2.5” and up 8 .750 .500 .189 TNMA-43-11.5NPT-EXT 6-021-11NPT 1”-2” 11.5 .750 .500 .189 TNMA-43-8NPT-INT 6-020-8NPT 2.5” and up 8 .750 .500 .189 TNMA-43-11.5NPT-INT 6-020-11NPT 1”-2” 11.5 .750 .500 .189 TNMC-43-8NPT-EXT 6-023-8NPT 2.5” and up 8 .750 .500 .189 TNMC-43-11.5NPT-EXT 6-023-11NPT 1”-2” 11.5 .750 .500 .189 TNMC-43-8NPT-INT 6-022-8NPT 2.5” and up 8 .750 .500 .189 TNMC-43-11.5NPT-INT 6-022-11NPT 1”-2” 11.5 .750 .500 .189 PITCH RADIUS FLAT 20 .004 .005 16 .005 .006 12 .006 .008 10 .007 .009 8 .009 .012 6 .012 .016 5 .014 .019 PITCH RADIUS FLAT 4 .018 .023 3 .024 .031 2.1/2 .029 .037 2 .036 .046 1.1/2 .048 .062 1.1/4 .057 .074 1 .071 .092 PART # I.C. THICK. TNMA-32NV-T12A 3/8 1/8 TNMA-43NV-T12A 1/2 3/16 TNMA-54NV-T12A 5/8 1/4 THREAD FORM THREADS PER INCH TAPER IN. PER FT. WIDTH OF FLAT ROOT RADIUS PART # CREST ROOT V-0.038R 4 2 0.065 —- 0.038 428 V-0.038R 4 3 0.065 —- 0.038 438 V-0.040 5 3 0.040 —- 0.020 530 V-0.050 4 3 0.050 —- 0.025 435 V-0.050 4 2 0.050 —- 0.025 425 V-0.065* 4 2 0.065 .056 F 42F V-0.076 4 1.1/2 0.076 .067 F 4PAC V-0.055 6 1.1/2 0.055 .047 F V0.055 5° Relief both sides EXTERNAL INSERT I.C. TPI T FOR CONNECTION TNMA - WITH STRAIGHT HOLE TNMC - WITH COUNTERSINK HOLE TNMA-43-6P-2S-E-1252 TNMC-43-6P-2S-E-1252 1/2 6 .189 2-STEP PH6 TNMA-43-6P-2S-E-1253 TNMC-43-6P-2S-E-1253 1/2 6 .189 2-STEP WP (WASH PIPE) TNMA-43-8P-2S-E-1254 TNMC-43-8P-2S-E-1254 1/2 8 .189 2-STEP WP, CB, CS TNMA-54-6P-2S-E-1252 TNMC-54-6P-2S-E-1252 5/8 6 .252 2-STEP PH6 TNMA-54-6P-2S-E-1253 TNMC-54-6P-2S-E-1253 5/8 6 .252 2-STEP WP (WASH PIPE) TNMA-54-8P-2S-E-1254 TNMC-54-8P-2S-E-1254 5/8 8 .252 2-STEP WP, CB, CS TNMA-55-4P-2S-E-1255 TNMC-55-4P-2S-E-1255 5/8 4 .312 2-STEP WP (WASH PIPE) TNMA-55-4P-2S-E-1256 TNMC-55-4P-2S-E-1256 5/8 4 .312 2-STEP WP (WASH PIPE) INTERNAL TNMA-43-6P-2S-I-1252 TNMC-43-6P-2S-I-1252 1/2 6 .189 2-STEP PH6 TNMA-43-6P-2S-I-1253 TNMC-43-6P-2S-I-1253 1/2 6 .189 2-STEP WP (WASH PIPE) TNMA-43-8P-2S-I-1254 TNMC-43-8P-2S-I-1254 1/2 8 .189 2-STEP WP, CB, CS TNMA-54-6P-2S-I-1252 TNMC-54-6P-2S-I-1252 5/8 6 .252 2-STEP PH6 TNMA-54-6P-2S-I-1253 TNMC-54-6P-2S-I-1253 5/8 6 .252 2-STEP WP (WASH PIPE) TNMA-54-8P-2S-I-1254 TNMC-54-8P-2S-I-1254 5/8 8 .252 2-STEP WP, CB, CS TNMA-55-4P-2S-I-1255 TNMC-55-4P-2S-I-1255 5/8 4 .312 2-STEP WP (WASH PIPE) TNMA-55-4P-2S-I-1256 TNMC-55-4P-2S-I-1256 5/8 4 .312 2-STEP WP (WASH PIPE)
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