The Ford Barn

edbarras · 05-05-2016, 08:49 PM

1949 Ford 239 v 8. Part number is 20428-s. What is it?

Bob C · 05-05-2016, 09:15 PM

3/8"-16x1 1/4" hex head bolt.

Bob

edbarras · 05-06-2016, 05:52 PM

Thanks Bob, where did you find this information? Thanks

V8COOPMAN · 05-06-2016, 06:34 PM

Quote:

Originally Posted by Bob C

3/8"-16x1 1/4" hex head bolt.

Bob

.......AND, that "S" means "PLAIN" finish. See the list below. DD

S = Plain
S1 = black enamel paint
S2 = Raven (Phosphate & Oil)
S3 = Raven finish with black painted head only
S4 = Raven (Phosphate & Oil) and black paint
S5 = Copper plate
S6 = Nickel Plate
S7 = Cadmium plate
S8 = Zinc plate
S7-8 = Cadmium-Zinc
S9 = Zinc plate (Bright)
S10 = Tinned
S11 = Copper Coat
S12 = Lacquer to match trim
S13 = Chrome plated (Interior Parts)
S14 = Nickel plate - Butler finish
S15 = Black Oxidized
S16 = Lead plate
S18 = Case hardened
S20 = Cement Coat
S21 = Lacquer for identification
S23 = Rustless (Stainless) steel - head polished
S26 = Cadmium or zinc plate and enamel
S27 = Screw blank
S28 = Sterile coating

Bruce Lancaster · 05-09-2016, 03:21 PM

Sponsored Links (Register now to hide all advertisements)

In early Ford catalogs (I have not looked into a post-'48 one lately) fasteners used with many mechanical parts are listed right below the associated part. Some will have a Ford number with a Ford model prefix and a Ford number close to that of the larger part. These are Ford only stuff, generally because fastener is high strength or a funny shape.
Others like the one you list have no prefix, longish number, and usually a suffix for finish...these are standard hardware, just normal bolts and washers and cotters. I believe the same numbers are or were used by multiple car companies.
In the early Ford catalogs, the standard parts are in a list at the back where they are described by thread, length, etc.
On a '32 Model B distributor...cam B-12210 is held down by a B-12211 screw (oddball threads, special head) washer B-12213 (close fit, smaller OD than hardware store washer) and lock washer 351356-S, a just plain hardware store part.
This can be useful information when you need to head to the hardware store, obviously.

05-05-2016, 08:49 PM	#1
edbarras Junior Member Join Date: Mar 2016 Posts: 3	Part number 1949 Ford 239 v 8. Part number is 20428-s. What is it?

05-05-2016, 09:15 PM	#2
Bob C Senior Member Join Date: May 2010 Location: So Cal Posts: 9,360	Re: Part number 3/8"-16x1 1/4" hex head bolt. Bob

05-06-2016, 05:52 PM	#3
edbarras Junior Member Join Date: Mar 2016 Posts: 3	Re: Part number Thanks Bob, where did you find this information? Thanks

05-09-2016, 03:21 PM	#5
Bruce Lancaster Member Emeritus Join Date: May 2010 Location: Madison, NJ Posts: 5,230	Re: Part number Sponsored Links (Register now to hide all advertisements) In early Ford catalogs (I have not looked into a post-'48 one lately) fasteners used with many mechanical parts are listed right below the associated part. Some will have a Ford number with a Ford model prefix and a Ford number close to that of the larger part. These are Ford only stuff, generally because fastener is high strength or a funny shape. Others like the one you list have no prefix, longish number, and usually a suffix for finish...these are standard hardware, just normal bolts and washers and cotters. I believe the same numbers are or were used by multiple car companies. In the early Ford catalogs, the standard parts are in a list at the back where they are described by thread, length, etc. On a '32 Model B distributor...cam B-12210 is held down by a B-12211 screw (oddball threads, special head) washer B-12213 (close fit, smaller OD than hardware store washer) and lock washer 351356-S, a just plain hardware store part. This can be useful information when you need to head to the hardware store, obviously.