Print Page - 67 Firewall Circuit Breaker C06 A1 #9

Title: 67 Firewall Circuit Breaker C06 A1 #9
Post by: big iron on September 11, 2022, 06:24:15 PM

What size and finish are the screws #9 (3858195) for the firewall circuit breaker?
Bob

Title: Re: 67 Firewall Circuit Breaker C06 A1 #9
Post by: 169INDY on September 11, 2022, 08:15:21 PM

Here is the AMK Data:
Tapping Screws - Hexwasher Head
Phosphate & Oil
#8 X 3/8 HXWA AB PHOS. 20 pk

Title: Re: 67 Firewall Circuit Breaker C06 A1 #9
Post by: big iron on September 13, 2022, 12:32:13 PM

Jim,
Thanks for the reply.
I wonder why the pilot hole of .125 is specified in AIM for a #8-18 when .136 is now specified?
Is AMK # B-12048 now the accepted replacement for 3858195 as AMK does not offer a direct part # replacement?
Bob

Title: Re: 67 Firewall Circuit Breaker C06 A1 #9
Post by: Petes L48 on September 13, 2022, 01:51:36 PM

Here's the link to the AMK item on their site. I've seen 1/8" and up, listed as a pilot hole size for a #8 sheet metal screw. AMK uses their own part number, likely because these fasteners were used on multiple makes of automobiles.

https://www.amkproducts.com/search-result/?ser=3858195

Title: Re: 67 Firewall Circuit Breaker C06 A1 #9
Post by: big iron on October 16, 2022, 08:23:17 PM

Looks like the pilot hole increases with the thickness of the metal.
Do all #8-32 hex screws have the same diameter at the base of the threads? If not then that could explain the different pilot hole sizes in the AIM.
Bob

CRG Discussion Forum

Camaro Research Group Discussion => Restoration => Topic started by: big iron on September 11, 2022, 06:24:15 PM