PEEK Nuts with Single Ferrules

PEEK nuts
  • Reuseable nut, replaceable ferrule
  • For 1/32", 1/16", and 1/8" tubing
  • Suitable for pressures to 280 bar (4000 psi)

Fingertight nuts have a knurled surface designed to allow sufficient sealing force to be applied to the ferrule without wrenches. Hex style nuts allow wrench tightening; however, since they are polyeric, they can break, and are recommended for use only when space is limited and fingers will not fit.

Tubing OD Description Qty/pkg Product No.
1/32" Fingertight nut, 6-40 thread 5 JR-ZN.5FPK-5
Ferrule PEEK 1/32-inch ferrule 5 JR-ZF.5PK-5
1/16" Fingertight nut,
10-32 thread
PEEK 1/16-inch nut 5 JR-5570-5
Ferrule PEEK 1/16-inch ferrule 5 JR-5003-5
1/8" Hex-head nut,
5/16-24 thread
PEEK 1/8-inch nut 5 JR-ZN2PK-5
Ferrule PEEK 1/8-inch ferrule 5 JR-ZF2PK-5


  • For 1/32", 1/16", or 1/8" OD tubing
  • Material: PEEK
  • Threads: See description in product number chart at left
  • Pressure rating:
    <280 bar (4000 psi)
    (Varies with tubing material and ID)