1/2" BSP Stainless Steel Pipe Fittings — Male/Female Adaptors, Tees & Couplings (A2)

Start by identifying the thread type (Male = external thread, Female = internal thread) on each port you need to connect. Then match the fitting configuration to your layout: for example, a straight coupling connects two pipes end-to-end, a tee adds a branch, and a reducer steps down from 3/4" to 1/2". Check the variant chart above — each numbered style shows the port arrangement (e.g., M-F-F = one male inlet, two female outlets).

BSP (British Standard Pipe) uses a 55° thread angle and is the standard in the UK, Europe, Australia, and much of Asia. NPT (National Pipe Taper) uses a 60° thread angle and is the US standard. BSP and NPT threads are not interchangeable — always confirm which standard your existing pipes and fittings use before ordering.

304 stainless steel (A2 grade) generally has a tensile strength of around 515 MPa (75,000 psi) and a yield strength of approximately 205 MPa (30,000 psi). These fittings are typically suitable for moderate-pressure water, air, and fluid systems. For high-pressure hydraulic applications, contact us to confirm suitability for your specific system.

Yes. 304 stainless steel (A2) offers good corrosion resistance against water, humidity, and mild chemicals, making it suitable for outdoor plumbing, garden irrigation, and marine-adjacent installations. For prolonged saltwater or chlorinated water exposure, 316 stainless steel is generally recommended.

BSP tapered threads (BSPT) generally self-seal under pressure, but applying PTFE thread seal tape is recommended for most plumbing and fluid applications to ensure a leak-free joint. BSP parallel threads (BSPP) typically require a bonded seal or O-ring for a proper seal. Check your fitting type and follow standard plumbing practice for your application.

M stands for Male (external thread) and F stands for Female (internal thread). The sequence describes each port on the fitting in order. For example, M-F-F on a tee means one male inlet and two female outlets. A straight coupling listed as F-M has one female end and one male end. Refer to the variant chart to select the configuration that matches your pipe layout.

The 1/2" BSP designation is a nominal pipe size, not the actual measured diameter. A 1/2" BSP thread has an actual outer diameter of approximately 20.9mm (≈0.825"). The reducer variants (Styles 01 and 11) step between 1/2" and 3/4" BSP, which has an OD of approximately 26.4mm (≈1.04").

Yes. Each fitting style is available in quantities of 1, 2, 4, 10, or 20 pieces per order. Bulk packs offer a lower per-unit cost and are well-suited for plumbing contractors, maintenance teams, and DIY projects requiring multiple connections of the same type.