Straight Adaptor (BSPT thread)

Grey Acetal Straight Adaptor (BSPT Thread)
Disclaimer: All images are for illustrative purposes only.

You will also need:

Locking Clip

Locking Clip

Prevents accidental disconnection of a speedfit fitting. Locks collet into position.

Quickly and easily converts an imperial push-fit connection to an imperial threaded connection.

John Guest straight adaptor (BSPT thread) push-fit fitting connects metric pipe to an imperial BSPT type thread connection. Fast and simple to install, John Guest Air and Pneumatics creates an instant connection and airtight seal without the need for tools, hot works or sealing agents. Air piping systems can be set up and installed 50% quicker than traditional methods.

The unique collet locking design firmly and securely holds the pipe in place without deforming the pipe or restricting flow. Fittings are also fully demountable, reducing system downtime during maintenance and making it quick and easy to modify or extend systems.

Designed in tough engineered plastic, fittings are compatible with John Guest nylon, powder coated aluminium or LLDPE tubing, as well as copper, PEXa and other soft metal pipe materials. All John Guest fittings are manufactured and assembled in the UK.

Features and benefits

  • Plastic push-fit adaptor for connecting to imperial BSPT threads
  • Strong acetal copolymer fitting with nitrile O-Ring
  • Airtight connection with superior flow characteristics
  • Instant push-fit connection and demountable without tools
  • Secure collet cover prevents accidental disconnection
  • Suitable for air and pneumatics piping systems up to 10 bar
  • Ideal for air, inert gases and vacuum applications
  • Food grade fitting suitable for potable liquids
  • Compatible with soft metal or plastic pipe/tubing


BSI Thermo Pipes and Fixings accredited
SKUDescriptionPipe OD ″BSPT ″Quantity per bagQuantity per boxAccreditations
PI010601SStraight Adaptor (BSPT thread) 3⁄16″ × 1⁄8″3⁄161⁄810500
PI010602SStraight Adaptor (BSPT thread) 3⁄16″ × 1⁄4″3⁄161⁄410500
PI010801SStraight Adaptor (BSPT thread) 1⁄4″ × 1⁄8″1⁄41⁄810500
PI010802SStraight Adaptor (BSPT thread) 1⁄4″ × 1⁄4″1⁄41⁄410400
PI011202SStraight Adaptor (BSPT thread) 3⁄8″ × 1⁄4″3⁄81⁄410250
PI011203SStraight Adaptor (BSPT thread) 3⁄8″ × 3⁄8″3⁄83⁄810250
PI011603SStraight Adaptor (BSPT thread) 1⁄2″ × 3⁄8″1⁄23⁄810150
PI011604SStraight Adaptor (BSPT thread) 1⁄2″ × 1⁄2″1⁄21⁄210150
PM010401SStraight Adaptor (BSPT thread) 5⁄32″ × 1⁄8″5⁄321⁄810500
PM010402SStraight Adaptor (BSPT thread) 5⁄32″ × 1⁄4″5⁄321⁄410500
PM010801SStraight Adaptor (BSPT thread) 5⁄16″ × 1⁄8″5⁄161⁄810400
PM010802SStraight Adaptor (BSPT thread) 5⁄16″ × 1⁄4″5⁄161⁄410400
PM010803SStraight Adaptor (BSPT thread) 5⁄16″ × 3⁄8″5⁄163⁄810300