threaded insert / press-in / knurled / metal
50, 51 series SPIROL


  • Type:

    threaded, press-in, knurled

  • Material:


  • Configuration:


  • Applications:

    for plastics

  • Size:

    Max.: 9.5 mm

    Min.: 3.2 mm


PRESS-IN INSERTS are ideal for use in softer plastics to provide a reusable thread which can meet the tightening torque requirements for a threaded joint. Moderate pull-out and good torque requirements are provided by the helical knurl which also facilitates good plastic flow. Easy and quick to install, the Series 50 Inserts are symmetrical with generous pilots. Series 51 is the headed version which is also suitable for pull-through applications where high pull-out force is a requirement.
These Inserts are designed to reduce installation cost at a sacrifice of torque and pull-out performance.