Fastener theoretical weight computation
The editor's note 86 edition of fastener related national standards no longer include the fastener weight part, according to the fastener profession production operation's need, should the partial fastener manufacturer request, Shenyang Standard letter Research institute Manager Zhang Jinming unify many years to be engaged in the fastener production technology the experiment experience, before conforming to at the end of 2004 present effective fastener related standard product weight, has carried on the theoretical weight equation development actually according to the production, and Ji Zhuyu the computer function more accurate has carried on the theoretical weight computation. This publication after 2005 the 2nd phase of publication, receives reading public's high praise. In order to satisfy reader's request, this publication will continue to print for everybody reference use.
For can the more direct-viewing understanding weight formula constitution inferential reasoning step. Some inferential reasoning formula has not made the final simplification (author note).