Understanding BSP Thread Sizes BSP thread sizes are mentioned throughout our site as these are standard thread sizes used throughout the sanitary industry. This term stands for 'British Standard Pipe' although it is used as an international measure throughout the world. If you have a fitting and you're not sure what size it is, this simple guide should help explain about different tap thread.
The Regular size is generally found on kitchen faucets and some larger bathroom faucets, while the Junior size is typical for most standard bathroom sinks. The primary standard size is a 15/16-inch male thread or a 55/64-inch female thread, both commonly having 27 threads per inch (TPI). What this guide covers: how pipe thread sizes work, common standards (NPT, BSP / BSPT /BSPP), threads-per-inch (TPI) and major diameters, tap & drill sizes for pipe threads, identification tips, and practical selection advice - with a compact, printable chart for common sizes.
These threads serve two primary purposes: they go through a hole in the basin, bath, or sink and the body of the tap is tightened up to the unit by means of the nut underneath. Tampa Bay Plumber delves into the world of sink faucet thread sizes, encompassing both traditional and modern designs. These connections use the NPT (National Pipe Thread) standard.
What kind of threads are on a bathroom faucet? Typical "Regular" size for a faucet aerator is 15/16″ male threaded or 55/64″ female threaded, while "Junior" size is 13/16″ male threaded or 3/4″ female threaded. The tap size chart provides a list of standard size taps, specifying the diameter and thread spacing, for fractional, metric, and screw sizes. The decimal equivalents of the diameters are shown in both English and Metric units.
Fractional sizes are listed in inches, while metric sizes are listed in millimeters following the letter "M". A screw size number corresponds to a diameter which is. Discover the perfect fit with our Faucet Thread Size Guide.
Explore standards for kitchen, bathroom, sink, and outdoor faucets. Basic tap size charts for strong holes and threads. Learn about metric, UNC/UNF, and pipe thread standards, as well as tips for accurate drilling and tapping.
The threaded part (s) of plumbing fittings are usually made to a British Standard Pipe Thread size (BSP). BSP sizes don't match up with what you measure on the scale of a ruler, which can obviously cause some confusion. For example a 1/2 inch BSP thread (see above) actually measures more like 3/4 inch with a ruler.
Conclusion When learning how to measure faucet thread size, it's vital to follow a systematic approach to ensure accuracy. Start by determining the thread type-male or female-before measuring the thread diameter and pitch. Next, compare your measurements against standard sizes using a reference chart to find suitable fittings.