Holley Mounting Nuts?

[Ralph B.]

Gentlemen,
The 70-72 Judging Manual states that "all Holley units have studs extending from the intake manifold and in 1970 use black nuts with built in washers" -------- I am having no luck at all locating these special nuts from the Corvette Suppliers --------- Are these available anywhere as reproductions or is there an approriate alternative?
Thank you,
Ralph

[Joe L.]

Re: Holley Mounting Nuts?

Gentlemen,
The 70-72 Judging Manual states that "all Holley units have studs extending from the intake manifold and in 1970 use black nuts with built in washers" -------- I am having no luck at all locating these special nuts from the Corvette Suppliers --------- Are these available anywhere as reproductions or is there an approriate alternative?
Thank you,
Ralph

Ralph-----

I believe these were flanged head. 5/16-24 hex nuts. I think that McMaster-Carr #91030A425 will get you about as close as you're going to get.

[Ralph B.]

Re: Holley Mounting Nuts?

Thank you Joe ! ------------ I will contact them tomorrow.
Ralph


I believe these were flanged head. 5/16-24 hex nuts. I think that McMaster-Carr #91030A425 will get you about as close as you're going to get.

[Terry M.]

Re: Holley Mounting Nuts?

Gentlemen,
The 70-72 Judging Manual states that "all Holley units have studs extending from the intake manifold and in 1970 use black nuts with built in washers" -------- I am having no luck at all locating these special nuts from the Corvette Suppliers --------- Are these available anywhere as reproductions or is there an approriate alternative?
Thank you,
Ralph

Here is what you are looking for -- in the lower right. Sorry, but it is the best picture I have at the moment.