Results 1 to 2 of 2

Thread: Push-In Fasteners for Threaded Holes

  1. #1
    Associate Engineer
    Join Date
    May 2013
    Posts
    4

    Push-In Fasteners for Threaded Holes

    Does anyone know if push-in fasteners work for threaded holes?

    LWSBH.gif


    I want to retain 3 wires in a stainless steel vacuum chamber and I want to replace a 1/4-20 screw, zip-tie and zip-tie bracket with a one push-in fastener. The push-in fastener should lower cost, part count and assembly time.

    The picture above is for a .312 diameter bind hole. If it works for 1/4-20 thread, then I would not have to change the design of the chamber. Anyone know of push-in fasteners for 1/4-20?

    Heat should not be an issue, but a material that does not out-gas or degrade in a vacuum would be optimal. Nylon has been approved, but it out-gasses and absorbs water.

    Thanks!
    Last edited by Kelly_Bramble; 03-09-2014 at 11:03 AM. Reason: Removed link

  2. #2
    Technical Fellow Kelly_Bramble's Avatar
    Join Date
    Feb 2011
    Location
    Bold Springs, GA
    Posts
    2,611
    The minor diameter of a .25-20 UNC -2B is Diameter .2070 to .2175. I would see if there is a push-in fastener that works in this range/ I don't see a problem interfacing with a thread feature.

    You could request a sample of the push-in's and test on a threaded feature if you are not sure...

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •