Indentify unique old bolts?

[wore out]

I am working on a DEERE 4020 that had a cab heater installed at one time, and eventually the lines were cut and plugged with these bolts.

They appear to be 5/8'' NC thread with a THICK 15/16'' hex head.

They are marked ''B P''.

The orange color is how the rust on them is picked up by the camera, it NOT ''CAT yellow'' paint.

I checked a bit on GOOGLE, and the only thing I came up with is a three-year-old post on Reddit of a similar bolt and they didn't come up with an I.D. either.

https://www.reddit.com/r/metallurgy...everyone_im_trying_to_find_information_about/

 

[Jim.ME]

(quoted from post at 14:55:29 03/04/23)

I am working on a DEERE 4020 that had a cab heater installed at one time, and eventually the lines were cut and plugged with these bolts.

They appear to be 5/8'' NC thread with a THICK 15/16'' hex head.

They are marked ''B P''.

The orange color is how the rust on them is picked up by the camera, it NOT ''CAT yellow'' paint.

I checked a bit on GOOGLE, and the only thing I came up with is a three-year-old post on Reddit of a similar bolt and they didn't come up with an I.D. either.

https://www.reddit.com/r/metallurgy...everyone_im_trying_to_find_information_about/

Bowman Products used that logo for head making on their bolts. They made/sold their "high grade" capscrews/bolts with the dots on the head like that and the heads were thicker. I forget what grade they claimed to be equal to, but it was higher than grade eight, might have been 12. There used to be some route salesmen around here that would stop in at shops and supply/restock bolt bins. Lawson Products did similar. It appears Bowman may be a part of Barnes Distributors now.

This post was edited by Jim.ME on 03/04/2023 at 11:09 am.

 

[Jim.ME]

BOWMALLOY was the trade name they used for those fasteners. You can find some info by searching that name.

 

[wore out]

(quoted from post at 12:17:08 03/04/23) BOWMALLOY was the trade name they used for those fasteners. You can find some info by searching that name.

Thanks for the info! I don't ever recall seeing bolts with that marking before.

 

[Jim.ME]

(quoted from post at 15:37:30 03/04/23)

(quoted from post at 12:17:08 03/04/23) BOWMALLOY was the trade name they used for those fasteners. You can find some info by searching that name.

Thanks for the info! I don't ever recall seeing bolts with that marking before.

In the 80's I worked a couple places that had their bolt bins stocked by Bowman, as well as a couple that used Lawson. Both companies supplied other maintenance supplies and chemicals as well. I think the salesmen in those areas retired and I don't know that anyone took over their routes. One papermill, I know of, was using Bowman hardware last time I worked there in about 2015. The salesman for that area was a good guy, but he was going to retire soon after, so I don't know if they still do use Bowman. Many places were swinging over to Fastenal and/or K.L. Jack for hardware and supplies.

 

[wore out]

Based on the history of the tractor, I would GUESS those lines were plugged off in the 70's.

 

[DoubleO7]

Here is a file I found years ago. It is 22 pages of fastener head markings per North American manufacturer.

Bolt head markings

No idea what the publication date is tho.

 

[Jim.ME]

I think Bowman/Barnes has modified the logo several times over the years, as some variations are shown in the document Double07 posted. Here is an ad I found on the web.

 

[4020man]

I used to get that brand of bolt when we needed a harder bolt than a grade 8. As you said they were called BOWMALLORY bolts. Our local machine shop
carried them .Do not know if they still do.

 

[DR. EVIL]

Boy! I wish I could print all 22 pages of that off for my reference library. You guys that looked at it I
hope noticed how many bolt mfg's were in Rockford I'll. When I lived outside Freeport, Ill west of Rockford I
listened to a Rockford radio station that boasted being being from Rockford, The city that Makes Screws.
I used to buy special bolts for scrap cutting shear blades and special head shapes to lock the bolt into
cast alloy steel wear liners we made for automobile shredders, think of a Hammermill feed grinder 8 feet wide
by 6 or 7 feet in diameter on a 15 or 16 inch shaft. Tie an 8000 hp electric motor to it and it spits out
chunks of full size 1960/'70/'80 cars the size of a grapefruit at the rate of a whole car every 30 seconds.
The scrap yard only removes the battery, gastank and tires. Anyhow, the last bolts I bought were 1-3/4
diameter 50 degree plow bolts in 26 and 36 inch lengths with 14-15 inches of fine threads rolled on and two
double length coupling nuts spun on each bolt, on this 1-3/4 bolt the nuts were about 2-1/2 across the
flats and 3-1/2 to 4 inches long. I bought lots of interesting Stuff while I worked there.