External thread th. Designation of thread. Number of threads in 25.4 mm. Pitch P. Height of thread h. major d = D. pitch d2 = D2. minor d1 = D1. Lower deviation.

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 /

British Thread (British Standard Whitworth) -- Coarse Pitch. Nominal Size Ww. Thread Form Type. Major Diameter mm d=D. Pitch mm p. Threads per inch tpi. Pitch Diameter mm d2=D2. Minor Diameter Male Thd. d3. Thread Height H1.

Fastener and Screw / Bolt Design, Formula and Calculations External 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

threads: BSP parallel: G followed by the designation BSP taper: R followed by the designation Metric Thread Code Metric Thread Code Metric Thread Code M3x0.5 09 M12x1.25 66 M22x1.5 82 M5x0.8 19 M12x1.5 67 M24x1.5 83 M6x1 52 M13x1.25 68 M27x1.5 85 M7x1 55 M14x1.25 70 M30x2 88 M8x1 56 M14x1.5 71 M33x1.5 90

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 

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.

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 

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

BSPP - male thread are both (also known as G) The below table gives the major and minor diameter for each BSP Trade Thread Size.

POB 1778 Greer, SC 29652 414 West Poinsett Street Greer, SC 29650 [email protected] Ph: 864-848-3993 www.traskinst.com Fax: 864-848-9569 G-SERIES PIPE THREAD (BRITISH STANDARD PIPE PARALLEL

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

Determination - Thread Types G or R or BSP G or R (Whitworth) or BSP (British Standard Pipe) Thread Cylindrical threads which are mainly used in countries with imperial system. The size of e. g. R 3/4" does not stand for a diameter. Thus the corresponding size has to be determined according to charts.

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

We have compiled a simple step-by-step guide to help you identify your thread type. In addition, we'll cover some of the most common port thread types including NPT/NPTF, BSPP (also known as G), BSPT, PT, Metric (M) and SAE. You'll need a couple tools on hand to make the process easier, but a straight steel ruler may work as well.

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

There are two types of BSP threads; - BSPP - male thread are both (also known as G) - BSPT - thread is parallel and the male thread is tapered (also know as R/Rp) (the thread can also be tapered it is then Rc, these are fairly rare to find).

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

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.

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.

Metric Thread Tolerances. The tolerances TD for internal threads and Td for external threads is derived from the class. The approximate tolerances can be calculated according to the below

M6 : Basic Thread Data (Pitch, minor & major diameters, depth, lead), Tolerance range for all applicable classes and much more

Threads on parallel fasteners use a cylindrical blank having an outside diameter between the major and minor diameters of the finished thread. A bar is rotated between hardened steel dies bearing the reverse thread form. The die threads penetrate the blank surface to form the thread roots and displace material radially outward to form the crests.

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).

POB 1778 Greer, SC 29652 414 West Poinsett Street Greer, SC 29650 [email protected] Ph: 864-848-3993 www.traskinst.com Fax: 864-848-9569 G-SERIES PIPE THREAD (BRITISH