Manufacturer’s identification mark, e.g., “X” ( on head of bolts and screws and on one end of studs and stud bolts ). ASTM A 193 Grade B8M Class 1 Regular Series and Heavy Series X 67610 B 8 M Symbol for identification of grade, i.e., “B8M”, applied to head. Manufacturer’s identification mark, Carriage Bolt A round head bolt with a square neck under the head. These must be tightenedwith a nut. Plow Bolt Similar to a carriage bolt , these have a flat head to maintain a smooth surface. Typically used on plows, road graders, and similar equipment. Dome Head Plow Bolt Similar to plow bolts , but with a … FASTENER IDENTIFICATION GUIDE October 3, 2008 . here. Revision Information Log . Guide for Approved Fasteners . October 3, 2008 . Effective Date . Description of Change . Authorized By . 03/21/08 . Date added to guide cover . Ray Rowden . 03/21/08 . Revision Information Log added .

Your browser does not support frames. heremend upgrading your browser. Click here to enter the site. Your browser does not support frames. Bolt Identification Guide . Posted on December 28, 2017 June 19, 2018 by Mike Drouin. How to identify a Bolt . So many bolts , so little time. Here’s a guide to help you figure out what the specs of almost any bolt , and tell if it’s either metric or standard. FASTENER IDENTIFICATION GUIDE . October 3, 2008 Revision Information Log Guide for Approved Fasteners October 3, 2008 Effective Date 03/21/08 03/21/08 05/15/08 05/16/08 05/16/08 05/23/08 10/03/2008 10/03/2008 10/03/2008 10/03/2008 10/03/2008 Authorized By Description of Change Date added to guide cover Revision Information Log added Dyson Corporation – New Nut Drawings Andre’ …

Hex Bolt Identification, Markings and Strength Chart Table Guide . Hex Bolt Identification, Markings and Strength Chart. Additonal information on bolts is located at the bottom of the webpage. Note: Some bolts share identical head identification and have significantly different strengths. Fastener Technology International . includes one year PDF subscription to FASTENER NEWS REPORT *offer ends 2/14/19. Available for $50 . Fastener Technology International Manufacturer Identification Symbols International Guide CD-rom includes one year subscription to FASTENER NEWS REPORT. Available for $20 in US, $ Cheat Guide Chart – Bolts, Screws, Washers, Nuts, Drive Charts. Working on a project and trying to find the name of a special bolt type? . Types of Fasteners – Bolt and Screw Identification Chart (Courtesy here) Wood Screws, Machine Screws, Thread Cutting Machine Screws,

U. S. Patent and Trademark Office Fastener Insignia Register Active Insignias Oct 30, 2014 Status: Name: Insignia: Rockford Bolt Steel Co. 126 Mill Street Rockford IL 61101 Delaware Corporation 01AE Owner _____ Recordal Date: 7/5/2006 Renewal Date: 7/6/2011 Domestic Fastener Forge, Inc.