Unic 51351 Brass Hex Nut 1/8 Bsp

Product Description

The UNIC 51351 is a brass hex head nut threaded to the 1/8 BSP (British Standard Pipe) specification. BSP fittings use a parallel or tapered thread form common in plumbing, HVAC, and fluid-handling systems, particularly on imported equipment and components. The hex head design allows installation and removal with a standard open-end or box wrench. Brass construction provides corrosion resistance and reliable sealing performance in low-pressure fluid and gas line connections. This fitting is typically installed by licensed plumbers, HVAC technicians, and pipe fitters working on systems that use BSP-threaded ports.

The 51351 is suited for use in residential and light commercial plumbing and HVAC applications where 1/8 BSP threaded connections are required. Common install scenarios include capping or securing fittings on boilers, water heaters, pressure gauges, manifolds, and imported equipment with BSP-threaded ports. It is a compact fastener fitting used wherever a small-diameter BSP nut is needed in a fluid or gas circuit.

Key Features

• Brass construction for corrosion resistance in plumbing and HVAC environments
• Hex head design for easy installation with standard hand tools
• 1/8 BSP thread specification for compatibility with BSP-standard ports and fittings
• Compact size suitable for tight-clearance installations

Compatibility

Designed for use with 1/8 BSP threaded ports and fittings in plumbing, HVAC, and fluid-handling systems.

Installation Notes

Installation should be performed by a qualified plumber or HVAC technician. Shut off water supply or depressurize the gas or fluid line completely before servicing any fitting. Use an appropriately sized wrench on the hex head to avoid rounding the fitting. Apply thread sealant or PTFE tape as appropriate for the service application and in accordance with local plumbing codes.