Results 1 to 2 of 2

Thread: 1/4-20 Thread callout

  1. #1
    Troy
    Guest

    1/4-20 Thread callout

    Hello,

    I have a legacy drawing that calls out a 2X .250-20 SL, at two holes from a symmetrical centerline.

    Does anyone know what "SL" means, or if this is a standard abbreviation?

  2. #2
    Technical Fellow Kelly_Bramble's Avatar
    Join Date
    Feb 2011
    Location
    Bold Springs, GA
    Posts
    2,611
    Welcome to EE!

    I'm not sure about the thread specification - as "SL" normally refers to the screw itself as being "Slotted" Straight.

    See: Flat head Slotted Screw
    Last edited by Kelly_Bramble; 11-13-2013 at 08:13 PM.

Posting Permissions

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