Calling Joe Lucia: re GM# 3888248

[Gary B.]

Joe,

Do you have any NOS 3888248 bolts in your parts collection? Are they black phosphate?

Gary

[Joe L.]

Re: Calling Joe Lucia: re GM# 3888248

Joe,

Do you have any NOS 3888248 bolts in your parts collection? Are they black phosphate?

Gary

Gary------


Believe it, or not, I don't have any. However, I'm virtually certain they were either black or natural.

[Gary B.]

Calling Joe Lucia: re GM# 3888248

Joe,

I think someone should donate an NOS example for your collection.

Gary

[Brad S.]

Re: Calling Joe Lucia: re GM# 3888248

Gary , I have what i am almost sure are nos bolts and they are black oxide

[Gary B.]

Gm# 3888248

Brad,

It sounds like there's no evidence to support a zinc/cad finish. Thanks to all who chimed it. I think the case is closed.

Gary

[Michael H.]

Re: Gm# 3888248

Brad,

It sounds like there's no evidence to support a zinc/cad finish.
Gary

Here's a shot that shows that the bolts were black. (dk grey, actually) Early 66 chassis on the line at St Louis. Black lock washers also.

[Ronald L.]

Re: Calling Joe Lucia: re GM# 3888248

Phos & oil was a typical fastener coating back then, rather simple, very little corrosion resistance.

this black oxide thing that is such a fascination would not have been an acceptable treatment for chassis & suspension parts.