• Adapters & Connectors: Standard Flangeless PEEK Fittings,  M6 Threaded Nuts, Ferrules and Locking Ring (100 Pcs/Pk)
    Adapters & Connectors: Standard Flangeless PEEK Fittings,  M6 Threaded Nuts, Ferrules and Locking Ring (100 Pcs/Pk) Adapters & Connectors: Standard Flangeless PEEK Fittings,  M6 Threaded Nuts, Ferrules and Locking Ring (100 Pcs/Pk) Adapters & Connectors: Standard Flangeless PEEK Fittings,  M6 Threaded Nuts, Ferrules and Locking Ring (100 Pcs/Pk)

PEEK (polyetheretherketone) is a semi-crystalline thermoplastic known for its exceptional chemical resistance and mechanical strength over a wide temperature range. It is extensively used in demanding environments such as food and beverage processing, chemical processing, and biopharmaceutical industries.

Total length of the nut is about 22 mm and the threaded length is 12.1 mm. The recommended torque value for these flangeless fittings is 0.22 N.M, and they can withstand pressures up to 4.2 MPa. Available in both 1/4"-28 UNF and M6 thread options, the flangeless fitting assembly includes a standard PEEK nut, one yellow ETFE ferrule and one stainless steel locking ring.   These fittings are compatible with tubing sizes (outer diameter) of 1.6 mm (1/16"), 2.0 mm, 2.5 mm, 3.0 mm, and 3.2 mm (1/8"). They can be tightened by hand or with a torque wrench, making them suitable for various applications. Each package contains 100 units of PEEK fittings and ferrules.


Typical Applications: 

  • HPLC column
  • Bio-pharmaceutical 
  • Chemical processing
  • Analytical instruments 
  • Food and beverage processing 











P/NFlangeless Fitting Assembly Accepted Tubing Size
ASP700708A
M6 PEEK nut + EFTE Ferule + Locking Ring
Tubing OD 1.6 mm (1/16")
ASP700708B
M6 PEEK nut + EFTE Ferule + Locking Ring
Tubing OD 2.0 mm 
ASP700708C
M6 PEEK nut + EFTE Ferule + Locking Ring
Tubing OD 2.5 mm 
ASP700708D
M6 PEEK nut + EFTE Ferule + Locking Ring
Tubing OD 3.0 mm 
ASP700708E
M6 PEEK nut + EFTE Ferule + Locking Ring
Tubing OD 3.2 mm (1/8")


Fitting and Connector
Model No. ASP-700708
Material PEEK
Color Natural
Thread M6
Overall Length 22 mm
Pressure Rating @ 20 ºC 4.2 MPa
Threaded Length 12.1 mm
Tubing OD 1.6mm/2.0mm/2.5mm/3.0mm/3.2mm
Qty. 100 units/Pk, including nut, locking ring and ferrule

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Adapters & Connectors: Standard Flangeless PEEK Fittings, M6 Threaded Nuts, Ferrules and Locking Ring (100 Pcs/Pk)

  • $720.00


  • 200 or more $684.00
  • 400 or more $648.00

Available Options


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Tags: Adapter, Connector, Microfluidics, Fluid Handling