I think even here in the US, square holes and M6 cage nuts and screws are pretty much standard. At least in data centers. Telco might still use 12-24.
From: Eric Kuhnke Sent: Tuesday, March 29, 2016 9:45 PM To: [email protected] Subject: Re: [AFMUG] Super long rack screw I've seen lots of M6 in the stuff from China, and of course 12-24 and 10-32 from US sources... But never M5. On Tue, Mar 29, 2016 at 7:41 PM, Ken Hohhof <[email protected]> wrote: Rack screw can be 10-32, 12-24, M5, M6. And rack rail can be threaded, round hole, square hole. Too many options. -----Original Message----- From: Cassidy B. Larson Sent: Tuesday, March 29, 2016 9:24 PM To: [email protected] Subject: Re: [AFMUG] Super long rack screw I know on Cisco switches you could turn the ears around and the holes would line up so you’d get more switch in front of the rails. On Mar 29, 2016, at 8:22 PM, Sterling Jacobson <[email protected]> wrote: That's a good idea. If there are not holes, is there a small screw type that is short and self-tapping? Not sure the best way to mount the ears if the holes for the ears don't exist on the switch. -----Original Message----- From: Af [mailto:[email protected]] On Behalf Of Chuck McCown Sent: Tuesday, March 29, 2016 8:10 PM To: [email protected] Subject: Re: [AFMUG] Super long rack screw Add mounting ears farther back on the switch. -----Original Message----- From: Sterling Jacobson Sent: Tuesday, March 29, 2016 7:57 PM To: '[email protected]' Subject: [AFMUG] Super long rack screw This is really specific; don't ask why I need it :) But I need a standard rack threaded screw that looks like a 6 to 7 inch long motherboard standoff screw. So it would stand a 1U switch forward from the 19" rack about 6-7 inches. I tried standard rack standoff modules, but the space is too limiting.
