Fastener 9417378

[George J.]

In the '65 AIM, this fastener is shown for attaching the steering column bracket and for the fresh air vent pulls, under the dash. I think the Judging Manual calls out a different fastener for the column bracket than for the pulls. I searched the archives, but did not see a definitive answer. Can someone tell me what the details for this fastener are, and possibly provide a photo?
I ordered a set from LIC or Paragon and received a screw that appears to coincide with what the Judging Manual calls for, but it is like a sheet metal screw, and this does not seem right, to me for this application.

George

[Alan D.]

Re: Fastener 9417378

George, do a search on that pn in the Archive Forum. Some good facts

[Scott S.]

Re: Fastener 9417378

George,

This same screw part number (GM 9417378) attaches the steering column escutcheon on Section 9, Sheet 5 (1963-64 AIM), UPC 9-5 (1965 AIM), UPC 9-A5 (1966 AIM). Page 9-A5 is missing from the '67 AIM, but I think the same Screw was used in '67 for this same application. My car is a '67, Screw part number GM 9417378 was also used to attach the Hood Release to the dash in 1967 (UPC 11-13-B5), and they are identical to my '67 steering column escutcheon screws.

Mine are Phillips oval head, black phosphate (more of a dark brown, like the five main dash-cluster screws) with a flat tip, cut vertically at the tip (Type BT tip). They measure #10-16 x 5/8". The head is approximately 5/16" OD, which I think corresponds to a #8 head.

The 65JG says:

"The escutcheon plate is secured to the cluster by two black phosphate Phillips screws." (p. 41)

"The fresh air pulls are located on each side of the steering column. The black plastic knobs are attached to semigloss black cast brackets, secured to the bottom edge of the instrument cluster with black phosphate countersunk Phillips screws." (p. 39) (65 AIM, 1ASM-D8)


I believe these two quotes are describing the same screw, the first quote just doesn’t specify “countersunk” and neither mentions that it is an oval head screw.

[George J.]

Re: Fastener 9417378

George, do a search on that pn in the Archive Forum. Some good facts

Alan,
I did do a search and only came up with two posts, neither of which had definitive information. If I'm missing something, I apologize, but could use a picture, and a description of the part no. from something official.

George

[George J.]

Re: Fastener 9417378

Scott,
that type of screw seems like an odd size for that application. It reminds me of the trim screws used in the rest of the interior, but for this application I would have expected a tighter thread.

George

[Scott S.]

Re: Fastener 9417378

If I'm missing something, I apologize, but could use a picture, and a description of the part no. from something official.

George

George,

Unfortunately, this is one of the many fasteners that is not listed in any of the P&As or Standard Parts Catalogs.

[Scott S.]

Re: Fastener 9417378

However, on a hunch, I jumped in the way-back machine, and in the October 1962 printing of the 1963 P&A there is an illustration titled "1963 Corvette Steering Wheel and Horn". It shows the Escutcheon (Gr. 9.746) and the attaching Screws (Gr. 8.977), which are not called out by part number, but their dimensions are given: 10-16 x 5/8"

As mentioned previously, this same Screw (GM 9417378) is called out at this location in every AIM from 1963-1966 (page is missing from '67 AIM), which means this 1963 drawing is applicable.



GM 9417378 Screw, Steering Column Escutcheon.jpg


I think that is game, set and match, as far as official GM documentation goes. The only hand that could beat it is the GM Engineering Standards Book, and I don't have that one (yet)

[Ron G.]

Re: Fastener 9417378

George,

I have some NOS hardware. I will check and see if I have any and let you know.

- Ron

[Scott S.]

Re: Fastener 9417378

Pictures of the Screws that were attached to the bottom of my '67 dash cluster, they are #10-16 x 5/8" Phillips oval head:

GM 9417378 Screw (1).jpgGM 9417378 Screw (2).jpg

[George J.]

Re: Fastener 9417378

Scott,
That is just the type of info. I was looking for. Thank you loads!
Forgive my ignorance, yet again, but what does the "A" stand for in P&A? I assume the "P" is for Parts. Is it Assessories?

Ron,
Thank you, as well.

George

[Scott S.]

Re: Fastener 9417378

George,

Yes, P&A is Parts & Accessories.

Glad to be able to help,

Scott

[George J.]

Re: Fastener 9417378

Scott,
Would one of these for '65's come up on ebay, or do you know where else I could find one? Thanks again.

George

[Scott S.]

Re: Fastener 9417378

Scott,
Would one of these for '65's come up on ebay, or do you know where else I could find one? Thanks again.

George

George,

In my experience, not many of the people who sell original screws & bolts on eBay list the part number... it's more like a game where they just tell you what they think it's for, and you have to figure out whether they're right before the clock stops or someone else beats you to it

If it's a NOS part still in the original GM package, or still has the GM picking tag, then you can get the part number, but most of the time you're lucky if they even correctly list the dimensions (e.g., #10-16 x 5/8"). You might try Richard Fortier, he advertises in Driveline, if Ron (post #8 above) doesn't have any.

[Joe L.]

Re: Fastener 9417378

George,

I have some NOS hardware. I will check and see if I have any and let you know.

- Ron

Ron-----


I don't think you'll have this one unless you got them out of an assembly plant. GM #9417378 was never available in SERVICE.

[Ron G.]

Re: Fastener 9417378

Joe,

You're probably right, but I will let you know in the next couple of days.

- Ron