Pitch Diameter Gages – Tapered

Pitch Diameter for Tapered Threads

Now, operators are able to inspect both new and used pipe threads using precision Pitch Diameter Gages that allow them to pinpoint early signs of stress, perform preventative maintenance, and extend the life of their drill string connections. By measuring the pitch diameters, the operators can directly control the connection’s size during manufacturing, as well as ensure that the thread cones go into interference properly when the connections are torqued together.

In the past, pitch diameter has been ignored as long as the ring or plug gage threaded to an acceptable standoff. Using a pin location profile (LPP) and a PD-8000-RSC Series gage or a box location profile (LPB) with an IT-5104-RSC provides you plenty of control. The process of locating and measuring the pitch diameter takes less than a minute. This minute of inspection quickly decides the difference between good quality and bad quality.

Pitch Diameter Location

For rotary shouldered connections, pitch diameter location templates locate the point on the connection where the pitch diameter is measured. When applied properly to the connection, the template’s special layout mark indicates the proper thread to measure the pitch diameter. A simple mark with a felt tip marking pen allows the operator or inspector to accurately position the gage and read a diameter. Please specify the threads per inch (TPI), taper per foot (TPF), and thread form when ordering. Custom profiles may be available.

Box Profiles
Connection TypeConnection SizeTPITPFThread FormModel
Hughes External Flush2⅜” - 2⅞”62”V-0.032LPB-6-2-32
API Numbered Connections#23 - #50 42”V-0.038RLPB-4-2-38
API Full Hole4”42”V-0.038RLPB4-2-38
Double Streamline3½” - 5½”42”V-0.038RLPB4-2-38
Hughes External Flush3½” - 4½”42”V-0.038RLPB4-2-38
Hughes Slim Hole2⅜”- 4½”42”V-0.038RLPB-4-2-38
Hughes Xtra Hole2⅞” - 5”42”V-0.038RLPB-4-2-38
Internal Flush2⅜” - 6⅝”42”V-0.038RLPB-4-2-38
Wide Open2⅜” - 4½” 42”V-0.038RLPB-4-2-38
API Numbered Connections#56 - #8443”V-0.038RLPB-4-3-38
API Full Hole2⅞”, 3½”, & 4½”53”V-0.040LPB-5-3-40
API Regular2⅜” - 4½”53”V-0.040LPB-5-3-40
API Full Hole5½” & 6⅝”42”V-0.050LPB-4-2-50
API Regular6⅝”42”V-0.050LPB-4-2-50
API Regular5½”, 7⅝”, & 8⅝”43”V-0.050LPB-4-3-50
API Numbered Connections #10, #12, #13, & #16 61.5”V-0.055LPB-6-1.5-55
API Regular (Macaroni Tubing)1” - 1.5”61.5”V-0.055LPB-6-1.5-55
P.A.C. Connections2⅜” - 3½” 41.5”V-0.076LPB-4-1.5-76
American Open Hole2⅜” - 4½” 41.5”V-0.076LPB-4-1.5-76
Hughes H-903½” - 6⅝”3.52”90-V-0.050LPB-3.5-2-H9
Hughes H-907” - 8⅝”3.53”90-V-0.050LPB-3.5-3-H9
Hughes Slimline H-902⅜” - 3½”31.25”90-V-0.084LPB-3-1.25-SLH9
Pin Profiles
Connection TypeConnection SizeTPITPFThread FormModel
Hughes External Flush2⅜” - 2⅞”62”V-0.032LPP-6-2-32
API Numbered Connections #23 - #50 42”V-0.038RLPP-4-2-38
API Numbered Connections #56 - #8443”V-0.038RLPP-4-3-38
API Full Hole4”42”V-0.038RLPP4-2-38
Double Streamline3½” - 5½”42”V-0.038RLPP4-2-38
Hughes External Flush3½” - 4½”42”V-0.038RLPP4-2-38
Hughes Slim Hole2⅜” - 4½”42”V-0.038RLPP-4-2-38
Hughes Xtra Hole2⅞” - 5” 42”V-0.038RLPP-4-2-38
Internal Flush2⅜" - 6⅝"42”V-0.038RLPP-4-2-38
Wide Open2⅜" - 4½" 42”V-0.038RLPP4-2-38
API Full Hole2⅞”, 3½”, & 4½”53”V-0.040LPP-5-3-40
API Regular2⅜” - 4½”53”V-0.040LPP-5-3-40
API Full Hole5½” & 6⅝”42”V-0.050LPP-4-2-50
API Regular6⅝” 42”V-0.050LPP-4-2-50
API Regular5½”, 7⅝”, & 8⅝”43”V-0.050LPP-4-3-50
API Numbered Connections #10, #12, #13, & #16 61.5”V-0.055LPP-6-1.5-55
API Regular (Macaroni Tubing)1” - 1.5”61.5”V-0.055LPP-6-1.5-55
American Open Hole2⅜” - 4½” 41.5”V-0.076LPP-4-1.5-76
P.A.C. Connections2⅜” - 3½” 41.5”V-0.076LPP-4-1.5-76
Hughes Slimline H-902⅜” - 3½” 31.25”90-V-0.084LPP-3-1.25-SLH9
Hughes H-903½” - 6⅝” 3.52”90-V-0.050LPP-3.5-2-H9
Hughes H-907” - 8⅝” 3.53”90-V-0.050LPP-3.5-3-H9

Pitch Diameter

Internal (Box) Pitch DiameterGagemaker-IT-5014-RSC-onpart

Gagemaker’s internal diameter and groove gages measure variation in internal bore diameters. Setting dimensions for the pitch diameter gages are provided by the TDWIN Taper software. Gages require setting with a standard or on a MIC TRAC™. Gages are shipped with two 0.144″ diameter contact points (T144) as standard, but other points may be substituted. Software, standards (see below), and additional contact points are sold separately.

RangeReach/DepthContact Points Included*DescriptionModel
1½” – 10” (38.1 mm – 254 mm)4” (101.6 mm)T144Internal Pitch Diameter Gage for Tapered ThreadsIT-5104-RSC
External (Pin) Pitch DiameterGagemaker-PD-8001-RSC-onpart

The ball pitch diameter gages indicate the pitch diameter size of the product’s external thread. The gages are adjustable within a size range and use interchangeable contact points to measure different pitch threads. Gages are shipped with two 0.144″ diameter contact points (T144) as standard, but other points may be substituted. Gages require setting with a standard or on a MIC TRAC™. Software, standards (see below), and additional contact points are sold separately.

RangeContact Points Included*DescriptionModel
0 – 6” (0 mm – 152.4 mm)T144External Pitch Diameter for Tapered ThreadsPD-8001-RSC
6” – 12” (152.4 mm – 304.8 mm)T144External Pitch Diameter for Tapered ThreadsPD-8002-RSC
Setting Standards
Gagemaker-RSC-PD-Rod-Standards-Gage

These rod style setting standards are used to set many JSS inspection gages for rotary shouldered connections. Standards for other connections may be available, contact us for more information.

Specify size or specific connection with ordering. Ex: RS-3.5-DS-B, RS-NC77-B, RSS-2.375-REG-B.

Connection NameBox/PinThreads Per Inch (TPI)Taper Per Foot (TPF)Thread FormDescriptionModel
Hughes External FlushBox62”V-0.032Rod Standard for External Flush (2.375″ – 4.5″), BoxRS-__-EF-B
Hughes External FlushPin62”V-0.032Rod Standard for External Flush (2.375″ – 4.5″), BoxRS-__-EF-P
API Full HoleBox42” V-0.038RRod Standard for Full Hole (2.875” – 6.625”), BoxRS-__-FH-B
API Full HolePin42” V-0.038RRod Standard for Full Hole (2.875” – 6.625”), PinRS-__-FH-P
API Numbered Connections #56 - #84Box43” V-0.038RRod Standard for API Numbered Connections (#10 – #77), BoxRS-NC__-B
API Numbered Connections #56 - #84 Pin43” V-0.038RRod Standard for API Numbered Connections (#10 – #77), PinRS-NC__-B
API Numbered Connections #23 - #50 Box42” V-0.038RRod Standard for API Numbered Connections (#10 – #77), BoxRS-NC__-B
API Numbered Connections #23 - #50 Pin42” V-0.038RRod Standard for API Numbered Connections (#10 – #77), PinRS-NC__-B
Double StreamlinePin42” V-0.038RRod Standard for Double Streamline (3.5” – 5.5”), PinRS-__-DS-P
Double StreamlineBox42” V-0.038RRod Standard for Double Streamline (3.5” – 5.5”), BoxRS-__-DS-B
Hughes External FlushBox42”V-0.038RRod Standard for External Flush (2.375″ – 4.5″), BoxRS-__-EF-B
Hughes External FlushPin42”V-0.038RRod Standard for External Flush (2.375″ – 4.5″), BoxRS-__-EF-P
Hughes Slim HoleBox42” V-0.038RRod Standard for Hughes Slim Hole (2.375” – 4.5”), BoxRS-__-SH-B
Hughes Slim HolePin42” V-0.038RRod Standard for Hughes Slim Hole (2.375” – 4.5”), PinRS-__-SH-P
Hughes Xtra Hole Box42” V-0.038RRod Standard for Xtra Hole (2.875″ – 5.0”), BoxRS-__-XH-B
Hughes Xtra Hole Pin42” V-0.038RRod Standard for Xtra Hole (2.875” – 5.0”), PinRS-__-XH-P
Internal FlushBox42” V-0.038RRod Standard for Internal Flush (2.375” – 6.625”), BoxRS-__-IF-B
Internal FlushPin42” V-0.038RRod Standard for Internal Flush (2.375” – 6.625”), PinRS-__-IF-P
Wide OpenBox42” V-0.038RRod Standard for Wide Open (2.375” – 4.5”), BoxRS-__-WO-B
Wide OpenPin42” V-0.038RRod Standard for Wide Open (2.375” – 4.5”), PinRS-__-WO-P
API Full HoleBox53” V-0.040Rod Standard for Full Hole (2.875” – 6.625”), BoxRS-__-FH-B
API Full HolePin53” V-0.040Rod Standard for Full Hole (2.875” – 6.625”), PinRS-__-FH-B
API Full HoleBox42” V-0.050Rod Standard for Full Hole (2.875” – 6.625”), BoxRS-__-FH-B
API Full HolePin42” V-0.050Rod Standard for Full Hole (2.875” – 6.625”), PinRS-__-FH-P
API RegularBox53” V-0.040Rod Standard for Regular (1.0” – 8.625”), BoxRS-__-REG-B
API RegularPin53” V-0.040Rod Standard for Regular (1.0” – 8.625”), PinRS-__-REG-P
API RegularPin43” V-0.050Rod Standard for Regular (1.0” – 8.625”), BoxRS-__-REG-B
API RegularBox43” V-0.050Rod Standard for Regular (1.0” – 8.625”), BoxRS-__-REG-B
API RegularBox42” V-0.050Rod Standard for Regular (1.0” – 8.625”), BoxRS-__-REG-B
API RegularPin42” V-0.050Rod Standard for Regular (1.0” – 8.625”), PinRS-__-REG-P
API Numbered Connections #10, #12, #13, & #16 Pin61.5”V-0.055Rod Standard for API Numbered Connections (#10 – #77), PinRS-NC__-P
API Numbered Connections #10, #12, #13, & #16 Box61.5”V-0.055Rod Standard for API Numbered Connections (#10 – #77), BoxRS-NC__-B
API RegularPin43” V-0.055Rod Standard for Regular (1.0” – 8.625”), PinRS-__-REG-B
API RegularBox43” V-0.055Rod Standard for Regular (1.0” – 8.625”), BoxRS-__-REG-B
American Open HoleBox41.5” V-0.076Rod Standard for Open Hole (2.375” – 4.5”), BoxRS-___-OH-B
American Open HolePin41.5” V-0.076Rod Standard for Open Hole (2.375” – 4.5”), PinRS-___-OH-P
P.A.C. ConnectionsBox41.5” V-0.076Rod Standard for PAC (2.375” – 3.5”), BoxRS-__-PAC-B
P.A.C. ConnectionsPin41.5” V-0.076Rod Standard for PAC (2.375” – 3.5”), PinRS-__-PAC-P
Hughes H-90Box3.52” 90-V-0.050Rod Standard for Hughes H-90 (3.5” – 8.625” ), BoxRS-__-H9-B
Hughes H-90Pin3.52” 90-V-0.050Rod Standard for Hughes H-90 (3.5” – 8.625” ), PinRS-__-H9-P
Hughes H-90Box3.53” 90-V-0.050Rod Standard for Hughes H-90 (3.5” – 8.625” ), BoxRS-__-H9-B
Hughes H-90Pin3.53” 90-V-0.050Rod Standard for Hughes H-90 (3.5” – 8.625” ), PinRS-__-H9-P
Hughes Slimline H-90Box31.25”90-V-0.084Rod Standard for Slimline H-90 (2.375” – 3.5” ), BoxRS-__-SLH9-B
Hughes Slimline H-90Pin31.25”90-V-0.084Rod Standard for Slimline H-90 (2.375” – 3.5” ), PinRS-__-SLH9-B