Anyone know this bolt symbol?

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I've looked and can't find it anywhere. Thanks
Reply:I'm going to say a grade eight by the slashes, however the center symbol would appear to be a manufacturers trademark type of symbol. Also looks to be cadmium plated unless the photo is deceiving. Best regards, Allanaevald
Reply:Pretty sure that bolt marking was discussed on WW a while back.Don't know what thread it was in though....and forgot what it meant........it's a rare Egyptian Pyramid bolt - holds the door on the mini-fridge Dave J.Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~ Syncro 350Invertec v250-sThermal Arc 161 and 300MM210DialarcTried being normal once, didn't take....I think it was a Tuesday.
Reply:I'd say a grade 8 hardened bolt, with a mfg mark in the middle of the head.
Reply:Try this thread:http://weldingweb.com/vbb/showthread.php...ht=bolt+symbolDave J.Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~ Syncro 350Invertec v250-sThermal Arc 161 and 300MM210DialarcTried being normal once, didn't take....I think it was a Tuesday.
Reply:Isn't that the "we are watching you" symbol?GravelThe difference between theory and practice is that in theory there is no difference.
Reply:That's the it will snap symbol if overtightened.......zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:Yup. Grade 8. (Number of markings + 2). Marking is the manufacturer (or sometimes distributor). Common symbols are a triangle, HK, FNL, etc. Its yellow zinc plated, which is standard for grade 8. Has a TS of about 150,000psi and a yeild strength of about 135,000psi.
Reply:Grade 8 and it's made by bowman/Barnes distributing
Reply:Its......Illuminati-nati-nati-nati lol
Reply:Ancient Egyptian @ symbol."USMCPOP" First-born son: KIA  Iraq 1/26/05Syncrowave 250 w/ Coolmate 3Dialarc 250, Idealarc 250SP-175 +Firepower TIG 160S (gave the TA 161 STL to the son)Lincwelder AC180C (1952)Victor & Smith O/A torchesMiller spot welder
Reply:It's a Bowman (manufacturer) Grade8 Bowma-Torq fastener.  The best laid schemes ... Gang oft agley ...
Reply:Originally Posted by aevald. Also looks to be cadmium plated unless the photo is deceiving. Best regards, Allan
Reply:Originally Posted by Firemanmike69Grade 8 and it's made by bowman/Barnes distributing
Reply:Thanks for the info EveryoneI need to save these for something worthwhile