Fastener ID help GM #4816192 for midyear

[John R.]

Can anyone tell me what size the following screw is, GM part #4816192, and its application in a midyear? Thanks in advance!

[Scott S.]

Re: Fastner ID help GM #4816192 for midyear

Hi John,

GM 4816192 is a Phillips round-head or 'truss head' (I think) with a very small washer-face lip (9/32" OD).

I have not found it listed in the GM parts books, but my old notes show it as being in Gr. 8.913 and 8.977 drawings, probably from a GM Illustrated Parts Book. If so, my reference was the 1968 edition (only one I have).

It has a pointed tip and a chrome finish.

The size is #8-18 x 1/2".

For 1967 that screw is used in four places:

1ASM-F11, Item 5 (page G105 in my AIM), through the carpet, below the door, behind the seats (2 screws total required, 1 each side)

and

1ASM-F13, Item 4 (page G107 in my AIM), for the Pinch-welt caps (4 screws total)

and

1 ASM-F22, Item 16 (page G116 in my AIM), convertible, windshield side moulding

and

A85-A2, Item 4 (page G285 in my AIM), to secure the buckle retainer, on cars equipped with shoulder harness

I can check other model years back to 1963 if you need information for a different midyear.

[John R.]

Re: Fastner ID help GM #4816192 for midyear

Scott, exactly what I needed. Thank you!

[Scott S.]

Re: Fastner ID help GM #4816192 for midyear

You're very welcome, glad to be able to help

[Joe L.]

Re: Fastner ID help GM #4816192 for midyear

Believe it or not, the GM #4816192 was once available in SERVICE but was discontinued without supercession in July, 1986. However, it was not what GM included in its "Standard Parts" groups. Instead, it was assigned to parts group 10.092 which is a group that includes windshield related parts. It was never cataloged for a Corvette application. It was apparently cataloged for some Chevrolet and GMC truck applications as well as some Oldsmobile applications. I don't know what they were.

Keep in mind that just because a part is available in SERVICE and is cataloged for certain applications does not mean that its PRODUCTION use is exclusive to those applications. It can very well be used in PRODUCTION for applications for which it was never cataloged. This is especially true for a screw like this.

[Scott S.]

Re: Fastner ID help GM #4816192 for midyear

Thanks for the information Joe, I have updated my notes accordingly. Great to see you, I haven't been on the discussion board here for a few years, until just recently.

[Mike B.]

Re: Fastener ID help GM #4816192 for midyear

Scott,

Excellent info. I sent you a PM.

OOPS.......PM failed. Sent you an email.

Mike