g thread chart

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

Parallel (G) threads are used where the seal is made on a mating face, like inside a cast iron radiator with the aid of a gasket. Tapered fittings achieve a 

BSPP Thread Chart Dimensions Calculator to show British Standard Pipe Parallel The symbol for pipe thread type is G for external and internal threads.

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

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

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

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

G/R/RP - Whitworth thread (BSPP/BSPT) View the table G = BSPP ISO 228 (DIN 259) R/Rp/Rc = BSPT ISO 7 (DIN 2999 replaced by EN10226) UNC/UNF - Unified national thread. View the table UNC ANSI B1.1 UNF ASNI B1.1. Drawings of other threads. Conversion factor. Download the types of thread document.

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

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).

Pipe thread sizesEdit · the words, Pipe thread, · the document number of the standard (e.g., ISO 7 or EN 10226) · the symbol for the pipe thread type: G, external