Brass BSP Male Thread Pipe Fitting Connector — 1/8" to 1/2" Joiner Adapter

Match the thread size (1/8\u201d, 1/4\u201d, 3/8\u201d, or 1/2\u201d BSP) to your existing pipe or fitting. For length, measure the depth of the female port you\u2019re threading into and select a body length that provides adequate engagement without bottoming out: 50mm (\u22482\u201d), 60mm (\u22482.4\u201d), or 70mm (\u22482.75\u201d). When in doubt, the longer option generally provides more thread engagement and a more secure seal.

Brass BSP fittings of this type are generally rated for working pressures up to 150\u2013200 PSI in typical plumbing and pneumatic applications. For high-pressure hydraulic systems, please contact us to confirm suitability for your specific pressure requirements before ordering.

Brass offers good natural corrosion resistance and is suitable for most indoor plumbing and moderate outdoor use, including garden irrigation systems. For prolonged saltwater exposure or highly corrosive chemical environments, stainless steel fittings are typically recommended. Always apply PTFE thread tape to ensure a watertight seal regardless of environment.

No — these fittings use BSP (British Standard Pipe) threads, which are not directly interchangeable with NPT threads. BSP and NPT have different thread angles (55\u00b0 vs. 60\u00b0) and pitches. If your system uses NPT ports, you will need a dedicated BSP-to-NPT adapter. If you\u2019re unsure which standard your system uses, check the fitting markings or contact us.

PTFE (Teflon) thread tape is generally recommended for BSP male thread fittings. Apply 2\u20133 wraps clockwise in the direction of the thread before installation. Thread sealant paste can also be used for higher-pressure or vibration-prone applications. Avoid over-tightening, which can crack brass fittings — typically 1\u20132 turns past hand-tight is sufficient.

These brass BSP male thread connectors are suitable for residential and commercial plumbing repairs, compressed air system connections, pneumatic tool line extensions, water supply line adapters, garden irrigation pipe joiners, and light hydraulic valve ports. They are not recommended for gas lines without first verifying local code compliance and pressure ratings.

In most cases, a standard adjustable wrench or pipe wrench is all you need. Use the wrench on the hex body of the fitting to avoid damaging the threads. Hand-tighten first, then snug with a wrench — typically 1\u20132 additional turns past hand-tight is adequate for a leak-free seal. Do not use power tools, as over-torquing can damage brass threads.