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Two brass straight adapters with male threads on both ends

Unique-Bargains

Unique-Bargains 1/4" NPT to M18x1.5mm Male Straight Air Hose Fitting 2pcs

SKU CH-280Q-779DX

Connects 1/4" NPT pipe to M18x1.5mm male fittings in a straight, leak-resistant adapter pair

  • Product typeHose Fittings
  • Connects 1/4" NPT pipe to M18x1.5mm male threads
  • Rust-resistant material handles high temperatures without leakage
  • Two adapters included for multiple connection points
  • Full-port straight design maintains flow through air or fuel lines
  • Quality construction provides strong strength for pneumatic systems

Two straight-thread adapters for mixed pipe sizes

This pack contains two straight male adapters that join a 1/4 inch NPT pipe thread to an M18 x 1.5 mm male thread. They are designed to connect hoses or fittings with different thread standards in pneumatic, fuel or water circuits. The fittings are manufactured from a corrosion-resistant material that maintains ductility at elevated temperatures. Each adapter provides a full-port, leak-free seal under high pressure and temperature conditions.

Suitable for installers joining NPT

These adapters suit technicians who need to bridge 1/4 inch NPT equipment to M18 x 1.5 mm components in air, fuel or water lines. They are not intended for applications that require a different thread pitch, a different nominal diameter, or a non-straight elbow or tee configuration. Buyers needing a female port, a swivel nut or a larger bore should select a different fitting type.

Verify thread compatibility and sealing method

Confirm that the male M18 x 1.5 mm thread matches the receiving port on your hose, valve or manifold before ordering. Check whether your system uses thread sealant, PTFE tape or a bonded washer for the NPT side to ensure a pressure-tight joint. The note on manual measurement means the actual thread engagement length may vary slightly, so allow for tolerance when planning the assembly.

How it compares

Measured against everything we stock in Hose Fittings, Adapters & Clamps, at today’s prices. Recalculated every night.

Price $4.99
Cheaper than about 83% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameUnique Bargains
Product typeHose Fittings

Questions about this item

What thread size must the hose or port already have to accept the M18×1.5 mm male end of this adapter?

The mating port or hose must provide an M18×1.5 mm female thread so the adapter’s male end can screw in directly.

Will the 1/4" NPT end seal reliably against older brass or steel fittings I already use?

Yes, the 1/4" NPT taper threads create a metal-to-metal seal with existing NPT ports, and the adapter material resists rust under pressure and temperature.

How can I confirm the joint is leak-free once both ends are tightened?

Pressurise the line and apply soapy water or a leak-detect fluid; no bubbles at either thread joint means the adapter is sealing as intended.

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