RSW bolts?

[Mike E.]

I'm very familiar with RBW bolts. However, on a 62, I found several of these RSW bolts. Has anyone ever seen that head on a 53-62? In what application/location? P5070148.jpg

[William C.]

Re: RSW bolts?

what is it holding together Mike?

[Mike E.]

Re: RSW bolts?

Bill,
I was waiting to mention that until I determined whether or not anyone has seen them. They would have been placed on an assembly by a supplier, not on the assembly line at either at the Flint engine plant or St. Louis.

[Gary C.]

Re: RSW bolts?

Mike,

RSW is not listed in the '63 Fastener Institute as a register bolt head logo. Nor is RBW. Believe RBW was or became Rockford, but don't know for sure.

Gary
....

[Gary B.]

Re: RSW bolts?

Mike,

RSW is not listed in the '63 Fastener Institute as a register bolt head logo. Nor is RBW. Believe RBW was or became Rockford, but don't know for sure.

Gary
....

Gary,

What's the significance of it being listed by the Fastener Inst or not? RBW is a commonly found head mark, on C2s at least, so it's clearly legit. Can't say I've ever seen an RSW before.

Gary

[Gary C.]

Re: RSW bolts?

As I understand it the IFI was formed to publish the head markings among other things. Is it a complete listing of all the companies producing fasteners in 1963, probably not.

This spring 1964 publication I have is GM, SAE and manufacturer markings. This publication is the most comprehensive list of period head markings I've found other than the GM Fastener 3 book set (1200 plus pages) of which I've never been able to acquire a copy of.

Gary
....

Fastener Institute 1963 Info_050814.jpg

Industrial Fastener Institute website http://www.indfast.org/default.asp

[Mike E.]

Re: RSW bolts?

RBW is also very common on later C1s.

[Michael G.]

Re: RSW bolts?

RBW was the head marking for "Russel Birdsall and Ward", a fastener manufacturing firm.

[Bruce B.]

Re: RSW bolts?

I remember the RBW factory in Port Chester , NY.
A very large operation many years ago when I saw it.
I have run across a number of RBW fasteners in my 62 but I'm not sure where they were.

[Robert G.]

Re: RSW bolts?

Do you have a listing for Ring Screw Works in Michigan? They've been around since the 1920s.

[Mike E.]

Re: RSW bolts?

I have the same document as Gary has. It lists "The Reliable Spring and Wire Forms Company", which certainly could translate to RSW. A Google search lists them in Elyria, Ohio. However, the document shows their code as RS. I do not have a Ring Screw Works listing in that document. The RSW bolt I pictured is used as a fastener in a low-production 1962 option. I've never seen that headmarking on a 57-62 before. Has anyone else seen it anywhere?

[Michael G.]

Re: RSW bolts?

Ring Screw Works was an independent fastener manufacturer who supplied many fasteners to GM. They are now part of another company. I have never seen them use RSW, they normally use a circle (ie: "Ring") as a mark.

[Gary C.]

Re: RSW bolts?

Ring Screw Works is at the bottom of page 37 in the 1964 IFI fastener head bolt marks
Fastener Institute 1963 Ring Screw Works_050914.jpg

Russel Birdsall and Ward
Fastener Institute 1963 Russell Birdsall Ward_050914.jpg

[Bob J.]

Re: RSW bolts?

I have the same document as Gary has. It lists "The Reliable Spring and Wire Forms Company", which certainly could translate to RSW. A Google search lists them in Elyria, Ohio. However, the document shows their code as RS. I do not have a Ring Screw Works listing in that document. The RSW bolt I pictured is used as a fastener in a low-production 1962 option. I've never seen that headmarking on a 57-62 before. Has anyone else seen it anywhere?

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[Mike E.]

Re: RSW bolts?

Bob,
Sent you a private message.
Mike

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