Strange bolt head markings

Status
Not open for further replies.

Bonnewagon

Rocket Powered Basset Hound
Supporting Member
Sep 18, 2009
10,540
14,217
113
Queens, NY
I was scrounging through my box O' bolts looking for a couple of 5/16 x 2" bolts. I came across a few that fit what I needed but the bolt heads had a weird symbol. It was a raised circle with a "U" in the circle. I have never seen this before. Anyone know what this is?
 
Status
Not open for further replies.

GBodyForum is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. Amazon, the Amazon logo, AmazonSupply, and the AmazonSupply logo are trademarks of Amazon.com, Inc. or its affiliates.

Please support GBodyForum Sponsors

Classic Truck Consoles Dixie Restoration Depot UMI Performance

Contact [email protected] for info on becoming a sponsor