1970-1972 battery ground cable bolt on frame

[D S.]

In the assembly manual on UPC 12, Sheet A11 there is a Note 7 bolt 180143. What bolt is that and what is the correct headmark?

Thanks,
Scott Sims
Texas Chapter

[Joe L.]

Re: 1970-1972 battery ground cable bolt on frame

In the assembly manual on UPC 12, Sheet A11 there is a Note 7 bolt 180143. What bolt is that and what is the correct headmark?

Thanks,
Scott Sims
Texas Chapter

Scott------


GM #180143 is a 7/16-14 X 3/4" standard hex bolt. It was a trimmed (non-indented) head bolt of GM-280M material grade (SAE grade 5; 3 lines). It was zinc plated. One headmarking was RBC but there were likely many different suppliers, especially for a very common-size bolt like this.

[D S.]

Re: 1970-1972 battery ground cable bolt on frame

Joe, thank you for your prompt reply.

Scott

[Rich P.]

Re: 1970-1972 battery ground cable bolt on frame

I see alot of TR next would be RBW and RSC. BUT I could list 10 different headmarkings I have seen in this application.

[D S.]

Re: 1970-1972 battery ground cable bolt on frame

I see alot of TR next would be RBW and RSC. BUT I could list 10 different headmarkings I have seen in this application.

Thanks, Rich. That helps.