5″ STC

  • -5″
  • -8 round
  • -Short Thread Casing
  • -V Form
  • -8 TPI (Threads per Inch)
  • -3/4″ TPF (Taper per Foot)
  • -60 deg included angle

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[bg_collapse view=”button-red” color=”#f0f8ff” expand_text=”▼Lead” collapse_text=”▲Lead” inline_css=”width: 100%” ]

Measurement Interval 1″
Measured Nominal Value 0
Compensated Setting Value¹ 1.00049″
Flat Setting Value² 0.92849″
Contact Point Size .072″
Tolerance +/-.003″

¹Lead is typically measured over 1″ intervals. Since the threads are on a taper, the 1″ value must be compensated to account for the taper. This value is the compensated value to account for the taper of the threads.

²The flat setting value is for using Gauge blocks to set the gauge. This value is calculated from the compensated setting value.

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[bg_collapse view=”button-red” color=”#f0f8ff” expand_text=”▼Taper” collapse_text=”▲Taper” inline_css=”width: 100%” ]

Taper Callout 3/4″ Taper per Foot
Measured Nominal 0.0625 in./in.
Compensated Setting Set on part³
Setting Standard N/A
Contact Point Size .072″
Tolerance +0.0052″/-0.0026″

³Taper gauges take direct measurements. You mark the part, set the gauge on the part and measure in intervals on the part. Each measurement interval is determined by your connection TPI. This interval would be 8 threads. *Always count the first marked thread as zero and count the roots of the thread when marking the part. *For external connections, you will set your gauge on the first marked thread closest to the face then measure upward to the next marked thread.

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[bg_collapse view=”button-red” color=”#f0f8ff” expand_text=”▼Thread Height” collapse_text=”▲Thread Height” inline_css=”width: 100%” ]

Actual Thread Height 0.07125″
Measured Nominal 0
Setting Standard “U” groove depth 0.0712″
Setting Standard 60° “V” groove depth 0.0712″
Contact Point Size *Special
ANSI Thread Wire Size 0.072169″
Tolerance +/-.002

*The contact points for thread height gauges for line pipe and round threads shall be conical in shape with a maximum included angle of 50° and shall not contact the thread flank. 

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Actual 0.05222″
Measured Nominal 0
Setting Standard “U” groove depth 0.05222″
Setting Standard 60° “V” groove depth 0.0712″
Contact Point Size .072″
ANSI Mic Over Wire Size 0.072169″
Tolerance +/- 0.0015″

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[bg_collapse view=”button-red” color=”#f0f8ff” expand_text=”▼Crest Diameter & Ovality” collapse_text=”▲Crest Diameter & Ovality” inline_css=”width: 100%” ]

Crest Diameter at Face 4.8828″/4.8672″
Compensated Distance to Gauge Plane 1.0625″/1.3125″
Crest Diameter at Gauge Plane 4.9492″
Set to Flat Distance to Gauge Plane 0.00
Set to Flat Crest Diameter at Gauge Plane 4.445″
Standard Shoe Size 0.625″
Average Thread Crest Diameter Tolerance +/-.008″
Maximum Allowed Ovality 0.015

*The crest diameter value changes depending on the nominal weight of the connection. The first number is for nominal weight of 11.5 lbs/ft. The second number is for all other pipe weights. 

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[bg_collapse view=”button-blue” color=”#f0f8ff” expand_text=”▼Lead” collapse_text=”▲Lead” inline_css=”width: 100%” ]

Measured Interval 1″
Nominal Measured Value 0
Compensated Setting Value¹ 1.00049″
Flat Setting Value² 0.92849″
Contact Point Size .072″
Tolerance +/-.003″

¹Lead is typically measured over 1″ intervals. Since the threads are on a taper, the 1″ value must be compensated to account for the taper. This value is the compensated value to account for the taper of the threads.

²The flat setting value is for using Gauge blocks to set the gauge. This value is calculated from the compensated setting value.

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[bg_collapse view=”button-blue” color=”#f0f8ff” expand_text=”▼Taper” collapse_text=”▲Taper” inline_css=”width: 100%” ]

Taper Callout 3/4″ Taper per Foot
Measured Nominal over 1″ interval 0.0625 in./in.
Compensated Setting Set on part³
Setting Standard N/A
Contact Point Size .072″
Tolerance +0.0052″/-0.0026″

³Taper gauges take direct measurements. You mark the part, set the gauge on the part and measure in intervals on the part. Each measurement interval is determined by your connection TPI. This interval would be 8 threads. *Always start marking the part from the first fully-formed thread closest to the face of the part. When marking, count the first marked thread as zero and count the roots of the thread when marking the part. *For internal connections, you will set your gauge on the innermost marked thread then measure outward to the next marked thread.

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[bg_collapse view=”button-blue” color=”#f0f8ff” expand_text=”▼Thread Height” collapse_text=”▲Thread Height” inline_css=”width: 100%” ]

Actual Thread Height 0.07125″
Measured Nominal 0
Setting Standard “U” groove depth 0.0712″
Setting Standard 60° “V” groove depth 0.0712″
Contact Point Size *Special
Tolerance +/-.002

*The contact points for thread height gauges for line pipe and round threads shall be conical in shape with a maximum included angle of 50° and shall not contact the thread flank. 

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Actual 0.05222″
Measured Nominal 0
Setting Standard “U” groove depth 0.05222″
Setting Standard 60° “V” groove depth 0.0712″
Contact Point Size .072″
Tolerance +/-.0015

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[bg_collapse view=”button-blue” color=”#f0f8ff” expand_text=”▼Crest Diameter & Ovality” collapse_text=”▲Crest Diameter & Ovality” inline_css=”width: 100%” ]

Crest Diameter at Face 4.8791″
Compensated Distance to Gauge Plane 1.2045″
Compensated Crest Diameter at Gauge Plane 4.8038″
Set to Flat Distance to Gauge Plane 0.00
Set to Flat Crest Diameter at Gauge Plane 4.254″
Standard Shoe Size 0.625″
Average Thread Crest Diameter Tolerance +/-.008
Maximum Allowed Ovality 0.015

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