A pemnut fastener is a nut that is pressed into sheet metal or pc board. A screw can then be used to hold the board or an I/O module or whatever. PEM BRAND is a trademark name. Contact the following for a catalog: Penn Engineering & Manufacturing Corp. Danboro, Pennsylvania 18916-1000 USA FAX: +1.215.766.0143 Phone: +1.215.766.8853 Sales Direct: +1.800.DIAL-PEM (USA ONLY) PEM also makes press fit standoffs and SNAP-TOP standoffs that require no screws. They have a line specifically for PC Boards. (Bulletin K-1191 and Bulletin KP-693) The KP line is for plated thru-holes in multi-layer pcb's. Have a happy day! --------------------------- John Laur Rockwell Automation Allen-Bradley Co Inc. 1201 South Second Street Milwaukee, WI 53204 +1 414 382 2162 (fax) +1 414 382 2393 (phone) [log in to unmask] --------------------------- > From [log in to unmask] Wed Jul 17 21:44:02 1996 > Resent-Date: Wed, 17 Jul 1996 21:37:04 -0700 > Old-Return-Path: <[log in to unmask]> > X-Sender: [log in to unmask] > To: [log in to unmask] > From: [log in to unmask] (D. Rooke) > Subject: Re: DES/FAB: PEMNUT FASTENERS IN FR4 FIBERGLASS > Resent-From: [log in to unmask] > > I am resending this E-mail since I believe it failed to be posted originally... > > > > Not being in the assembly arena... what in the world is a pemnut fastner??? > > RSVP > Dave Rooke > [log in to unmask] > _____________________ > >>We have a member who has submitted the following inquiry. Any information > >>is greatly appreciated: > >> > >> "I would like to get any information that you have to offer concerning > >>broach type pemnut fasteners in FR4 material. Normally in our designs we > >>try not to use pemnuts in multilayer boards because of the damage they > >>can do to internal layers. We have a recent design that does use pemnuts > >>and would like to know of any concerns there might be, especially any > >>spacing requirement in internal layers. > >> > >> "I would appreciate any adive you can give me on this concern." > D. Rooke > ([log in to unmask]) > > *************************************************************************** > * TechNet mail list is provided as a service by IPC using SmartList v3.05 * > *************************************************************************** > * To unsubscribe from this list at any time, send a message to: * > * [log in to unmask] with <subject: unsubscribe> and no text. * > *************************************************************************** > > *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * ***************************************************************************