These 3/4" BSP connectors are screw‑on plumbing couplings designed to join hoses, taps and pipe fittings that use British Standard Pipe (BSP) threads. Their primary use is to provide a reliable threaded connection between 3/4" BSP male and female components in water, irrigation and general-purpose fluid systems where a standard BSP interface is required.

The connectors are manufactured from dezincification‑resistant brass (commonly supplied to CW617N/CW602N material grades) and finished with a bright nickel plate to improve surface hardness and extend corrosion resistance in wet environments. The thread form is 3/4" BSP parallel (G 3/4") to ISO 228‑1, compatible with common BSPP fittings; they will also mate with many BS/ISO specified components used in the UK plumbing trade. Each connector features hexagon wrench flats so the coupling can be tightened with a standard spanner rather than relying on a screwdriver or drive bit.

Typical applications include domestic plumbing repairs, garden hose connections, irrigation systems, workshop air lines and some low‑pressure marine and caravan plumbing installations. Because the base alloy is dezincification‑resistant, these connectors are suitable for potable water systems and installations where prolonged exposure to water could otherwise lead to brass degradation.

Key benefits of these 3/4" BSP connectors are their material stability and compatibility with standard BSP fittings, giving a straightforward replacement or upgrade path for existing pipework. The brass construction delivers good mechanical strength and wear resistance at the thread interface while the nickel plating adds further corrosion protection and a cleaner appearance. The hex flats provide safe, repeatable torqueing for leak‑free joints without damaging the fitting.

Supplied as a pack of two, these connectors are stocked by Duchy Fasteners in a range of common BSP sizes and pack quantities to suit trade and DIY needs. If you need alternate sizes, finishes or quantity packs, please check our stock range or contact Duchy Fasteners for availability.