Requirements for thread form, dimensions, tolerances and designation for fastening pipe threads, thread sizes. ; G 1/4, 13.16, 11.89, 11.80 

Whitworth's new standard specified a 55° thread angle and a thread depth of 0.640327p and a radius of 0.137329p. Where p is the pitch. The thread pitch increases with the diameter in steps specified on a chart. The Whitworth thread system was later to be adopted as a British Standard to become British Standard Whitworth (BSW).

The most common types of Whitworth thread are: BSPP (G) – British Standard Pipe Parallel; BSPT (R/Rp) – British Standard Tapered Pipe, for pipes and tapered 

1/4″ (6mm) from thread diameter measurement for nominal pipe size. Pitch is Threads Per Inch (TPI). “Gas”, “R” & “G” also refer to BSP. “Male Iron 

4. RE: Chart with summarized data. ClearCollect (mygraphgroup, GroupBy (mygraph, " TeamName ","TeamNameGroup")) on click of button, in View menu > Collection, you will get TeamName and TeamNameGroup (as table) records (first 5) to access other fields like Quantity, you can use Sum (TeamNameGroup, quantity) Thanks.

The most common types of Whitworth thread are: BSPP (G) – British Standard Pipe Parallel. BSPT (R/Rp) – British Standard Tapered Pipe, for pipes and tapered thread. An appropriate

Thread Form r = Basic Radius = * 137329 p h = Basic Depth of Thread = *640327 p p = Pitch = 1/t.p.i. (Threads per Inch) ISO 228, DIN 259, BS2779, JIS B0202 In Japan this thread is known as (PF) Use prefix G for parallel thread. Example: G1/2 11 /

Chart No 1 - Whitworth Threads Whitworth Form Threads (55 Deg Thread Angle) Dimensions in Inches except where stated Thread Form Data Tapping Drill Clearance Drill Diameter O/Diameter Core Pitch Depth Radius Effective Dia T.P.I Dec / Met / Frac Dec / Met / Frac 1/8" 0.1250 0.0930 0.0250 0.0160 0.0034 0.1090 40 0.1004 - 2.55mm 0.1299 - 3.30mm

Table 3: British Standard Pipe Dimensions for Standard Thread Sizes. Nominal G / R size (in), Corresponding Pipe. DN (mm), Actual OD (mm), Wall (mm).

The table below summarises BSP sizes to help with general identification. Major diameter is slightly less than the actual outside diameter of the threads.

G-Series pipe thread chart (British standard pipe parallel was BSPP & BSPF) and PF-Series pipe thread chart (Japanese pipe parallel).

SIZE TPI MAJOR (EXT) MINOR (INT) TAP DRILL 1/8" 28 9.728 8.566 8.70 1/4" 19 13.157 11.445 11.60 3/8" 19 16.662 14.950 15.00

per inch, while a 1/4-28 (UNF fine) thread has the same nominal major diameter but 28 threads per inch. Metric thread specifications are different because the thread pitch is defined by the distance between each thread in mm instead of threads per inch. For example, an M12x1.75 (coarse) thread has a 1.75mm pitch, while an M12x1.50 (fine) thread

UNC Series Basic Dimensions chart. Click the Thread Link to get the Full Thread Data for all classes in Inch and Metric units. All dimensions are in inches. To view Metric translation click

British Standard Pipe BSP thread chart, BSP thread chart showing TPI and drill sizes. BSPP / BSPT B RITISH S TANDARD P IPE P ARALLEL / B RITISH S TANDARD P IPE T APER

Size ‑ Nominal Diameter; (mm) Pitch1); (mm) Tap Drill; (mm) M 1.0 x 0.2 0.20 0.80 M 1.1 x 0.2 0.20 0.90 M 1.2 x 0.2 0.20 1.00

For example, G threads are not compatible NPT threads because of their differing angles, shapes, and thread Metric Thread Type Chart.

High-Pressure Thread-Lock Quick-DisconnectHose Couplings for Hydraulic Fluid. Use these couplings at pressures up to 10, 000 psi. The plug and socket thread together to form a stronger connection than other quick-disconnect couplings. They are compatible with High-Pressure Thread-Lock-shape plugs and sockets.

Pipe Threads. These metric pipe thread sizes have been adopted by the ISO (International Standards Organization), and are primarily intended for pipes or 

internal thread D = Basic Diameter P = Pitch H = 3 2 × P = 0.866025404 × P h n = 5 8 × H h d n = 1 4 × H D 1 = D − 2 × h n D 2 = D 1 + 2 × h a n F r n = P 8 F c n = P 4 The above formulas provide the exact results. You case use them directly, utilize our Thread Calculator [ , or browse the below charts. Metric thread Dimensions Charts

British Standard Pipe (BSP) has been use as standard in plum and pipe fittings. There are two types of BSP Thread available. Parallel threads & Taper 

per inch, while a 1/4-28 (UNF fine) thread has the same nominal major diameter but 28 threads per inch. Metric thread specifications are different because the thread pitch is defined by the distance between each thread in mm instead of threads per inch. For example, an M12x1.75 (coarse) thread has a 1.75mm pitch, while an M12x1.50 (fine) thread

G Thread Connection Cylindrical Pipe Thread Connection According to ISO 228/1 (other common descriptions are BSP, R) Male: ie. G 1/4" (ISO 1179): ie. G 1/4" Male Thread G 1/8" G 1/4" G 3/8" G 1/2" G 3/4" Thread G 1/8" G 1/4" G 3/8" G 1/2" G 3/4" 9.6 13.0 16.5 20.8 26.3 8.75 11.8 15.25 19.0 24.5: 8.0 10.0 10.0 12.0 12.0 7.4 11.0 11

ANSI/ ASME INTERNAL Screw Thread Size Chart. All units are in inches. Unified Screw Threads per. ANSI/ASME B1.1-1989 (R2001), R2001) Nomenclature, are used. Acceptability criteria are described in ANSI/ASME B1.3M-1992 (R2001). Note: This screw chart is not comprehensive of all available standard threads as provided by the standard.

1) PF and PT threads are functionally interchangeable with BSPP and BSPT threads, respectively. These are old designations. They are being replaced with G (for 

British Pipe Thread ( Whitworth Form) -- Parallel (BSPP/BSPF) -- (G). Major Dia External Thread Internal Thread Tap Size Size pitch Major Dia Pitch Dia Minor 

Metric Thread 10 12 14 16 18 20 22 24 26 27 30 33 36 42 48 M 10x1.0 M 12x1.5 M 14x1.5 M 16x1.5 M 18x1.5 M 20x1.5 M 22x1.5 M 24x1.5 M 26x1.5 M 27x2.0 M 30x2.0 M 33x2.0 M 36x2.0 M 42x2.0 M 48x2.0 15/16 - 12 THREAD CHARTS • JIC - SAE • Metric/International VISIT US AT BRENNANINC.COM

Fastener and Screw / Bolt Design, Formula and Calculations Internal Pipe Threads per. ISO 228-1, Pipe threads where pressure-tight joints are not made by the threads. These pipe threads are also known as Whitworth pipe threads. Where: D = Major Dia.internal thread D 1 = Minor Dia.internal thread D 2 = Pitch diameter internal thread

internal thread D = Basic Diameter P = 1 T P I H = 3 2 × P = 0.866025404 × P h n = 5 8 × H h a n = 1 4 × H D 1 = D − 2 × h n D 2 = D 1 + 2 × h a n F r n = P 8 F c n = P 4 Unified Inch Threads Dimensions Charts UNC Series Basic Dimensions chart Click the Thread Link to get the Full Thread Data for all classes in Inch and Metric units.

Chart No 1 - Whitworth Threads Whitworth Form Threads (55 Deg Thread Angle) Dimensions in Inches except where stated Thread Form Data Tapping Drill Clearance Drill Diameter O/Diameter Core Pitch Depth Radius Effective Dia T.P.I Dec / Met / Frac Dec / Met / Frac 1/8" 0.1250 0.0930 0.0250 0.0160 0.0034 0.1090 40 0.1004 - 2.55mm 0.1299 - 3.30mm

THREAD DATA CHART: Metric Thread -- Fine Pitch; Nominal Size ISO MF Thread Form Type Major Diameter mm d=D Pitch mm p Root Radius mm r Pitch Diameter mm d2=D2 Minor Diameter Male Thd. d3 Minor Diameter Thd. D1 Thread Height Male Thd. h3 Thread Height Thd. H1 Tap Drill Diameter mm; 1.0x0.2: M: 1.00: 0.20: 0.029: 0.870: 0.755: 0.783