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  1. BSPP G 1/8 : Thread Dimensions (Machining Doctor)

    BSPP G 1/8 : Brith Pipe (BSP) Thread Dimensions and Tolerances. All the relevant data for this tread in one spot

  2. BSPP G 1 1/8 : Thread Dimensions (Machining Doctor)

    BSPP G 1 1/8 : Brith Pipe (BSP) Thread Dimensions and Tolerances. All the relevant data for this tread in one spot

  3. British Pipe Threads: Dimensions And Formulas (BSP)

    This webpage will explain the difference between the various series, how each parameter is defined, and show how to find the correct basic dimensions and tolerances for each thread.

  4. Unified Threads (UNC/UNF/UNEF): Dimensions & Formulas

    To manufacture or measure a thread, one has to know the maximum and minimum permissible values of the basic dimensions. These values are calculated according to the thread class …

  5. BSPP G 3/8 : Thread Dimensions (Machining Doctor)

    BSPP G 3/8 : Brith Pipe (BSP) Thread Dimensions and Tolerances. All the relevant data for this tread in one spot

  6. 1 - 8 UNC : Thread Dimensions (Machining Doctor)

    1 - 8 UNC : Basic Thread Dimensions (Pitch, minor & major diameters, depth, lead), Tolerance range for all applicable classes and much more

  7. ThreaDoctor: Advanced Thread Calculator (UN/M/NPT/BSP)

    If the thread is coated and you want to obtain the dimensions before coating for your production, simply enter the coating thickness, and the calculator will do all the math for you.

  8. Metric Threads: Dimensions, Classes & Formulas (full Guide)

    To manufacture or measure a thread, one has to know the maximum and minimum permissible values of the basic dimensions. These values are calculated according to the thread class …

  9. National Pipe Thread (NPT): Dimensions& Formulas

    This webpage will explain the difference between the various series, how each parameter is defined, and show how to find the correct basic dimensions and tolerances for each thread.

  10. 1 5/8 - 12 12-UN : Thread Dimensions (Machining Doctor)

    1 5/8 - 12 12-UN : Basic Thread Dimensions (Pitch, minor & major diameters, depth, lead), Tolerance range for all applicable classes and much more