HPLC PEEK Flangeless Nut, Flat bottom (5/16-24 UNF for 3/16" OD Tubing)

SKU: HPLCPK516-316
PEEK 450G Material Data Sheet
Regular price $13.49 inc. VAT
Regular price -50% $26.99 Sale price $13.49 inc. VAT

HPLC PEEK Flangeless Nuts with a flat bottom configuration are precision fluid handling components designed for High-Performance Liquid Chromatography (HPLC) systems that require reliable, leak-free connections and superior chemical resistance. Manufactured from advanced Polyether Ether Ketone (PEEK), these nuts provide outstanding compatibility with a wide range of solvents while delivering excellent mechanical strength and dimensional stability in demanding analytical environments.

Designed with a 5/16-24 UNF thread for use with 3/16" OD tubing, these flangeless nuts provide reliable sealing without the need for flared tubing ends, simplifying installation and maintenance. The flat bottom design ensures consistent compression and secure tubing retention, making them ideal for analytical and laboratory applications where system integrity and contamination control are critical.

PEEK flangeless nuts are widely used in HPLC and UHPLC systems, chromatography equipment, laboratory instrumentation, and fluid handling assemblies where metal fittings may introduce corrosion or sample contamination.

Key Features

  • Manufactured from high-performance PEEK polymer
  • 5/16-24 UNF thread for 3/16" OD tubing
  • Flat bottom design for reliable sealing
  • Compatible with HPLC and UHPLC systems
  • Excellent chemical and solvent resistance
  • High mechanical strength and dimensional stability
  • Low moisture absorption
  • Nonconductive and nonmagnetic
  • Corrosion-free and contamination-resistant
  • Suitable for high-purity analytical applications

Available for chromatography, laboratory, and precision fluid handling systems.

  • Type HPLC Fittings
  • SKU HPLCPK516-316
  • Material Polyether Ether Ketone (PEEK)
  • Drive Type Thumb Screw
  • Measurement System Imperial (INCH)

Material: PEEK 450G (Polyether Ether Ketone)

Maximum Temperature: 500°F

Flammability: UL94 V-0

Tensile Strength: 97MPa

  • - Certificate of Conformity
  • - ISO 9001
  • - REACH (Registration, Evaluation, Authorisation, and Restriction of Chemicals)
  • - RoHS2 (Restriction of Hazardous Substances)
  • - Material Datasheet

Return components within 90 days for a full refund. Please see our returns terms and conditions for further information.

Product Dimensions

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PEEK 450G (Polyether Ether Ketone)

Properties and applications

  • Properties

    - High temperature operation (500°F)
    - Low outgassing in a vacuum
    - Flame Resistant
    - High Tensile Strength (97MPa)

  • Common Applications

    - Aerospace
    - Life Sciences
    - Medical Equipment
    - Telecommunications

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