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Zerk fittings found
#1369434 Fri Jul 17 2020 02:58 AM
Joined: Jun 2008
Posts: 1,452
S
Shop Shark
I bought some zerk fittings at HF last year that turned out to be junk. Poor metal, and about half of them wouldn’t take grease so I’ve been looking for some high quality replacements. I was in Tractor Supply last week and stumbled upon their selection of zerks and looked them over. The first thing I noticed about them was that they are heavy. Heavier than the ones I got from HF for sure. Then I was impressed by the quality and detail. They look very well-made. I wish they had been black oxide, but that didn’t stop me from buying some to try. I plan on installing them this weekend and will report on how they perform.

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6B455464-61C4-420F-8E5F-86B9B228FBDC.jpeg (190.12 KB, 201 downloads)
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Chuck
1950 Chevy 1/2 ton (original)
1951 Chevy 1/2 ton (future streetrod)
1941 Chevy coupe
1938 Chevy coupe streetrod
Re: Zerk fittings found
Spotbiltxo #1369449 Fri Jul 17 2020 05:44 AM
Joined: Dec 2014
Posts: 691
M
Shop Shark
I'm guessing that they're stainless steel?


1951 Chevy Panel Truck
Re: Zerk fittings found
Spotbiltxo #1369467 Fri Jul 17 2020 01:08 PM
Joined: Jun 2008
Posts: 1,452
S
Shop Shark
I thought the same thing. Hard to tell though whether it’s stainless or chrome plated. I lean towards stainless. They’re really well made.

* I just used an angled welding magnet to see if they stick and they did, but not very well. My guess is that they are made of some sort of an alloy with a lot of stainless in it.

Last edited by Spotbiltxo; Fri Jul 17 2020 01:14 PM.

Chuck
1950 Chevy 1/2 ton (original)
1951 Chevy 1/2 ton (future streetrod)
1941 Chevy coupe
1938 Chevy coupe streetrod
Re: Zerk fittings found
Spotbiltxo #1369485 Fri Jul 17 2020 03:20 PM
Joined: Mar 2010
Posts: 926
Y
yar Offline
Shop Shark
Good morning Chuck.

According to this article some stainless is slightly magnetic:

https://www.greenwoodmagnetics.com/...nce-between-304-and-316-stainless-steel/

It's not surprising that the HF Zerks are junk, is it? The only things that they have that aren't junk are zip ties and electrical tape. Quality must not be an issue for some people because HF manages to stay in business.

It's nice to know that Tractor Supply has good Zerks.

Ray W


Ray
Re: Zerk fittings found
Spotbiltxo #1369487 Fri Jul 17 2020 03:24 PM
Joined: Sep 2001
Posts: 30,454
ace skiver
Many Tractor Supply products are the same as the Harbor Freight products (with different "brand name" tags and sometimes different colors).

One recently discussed example is recalled jack stands.


Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Re: Zerk fittings found
Spotbiltxo #1369510 Fri Jul 17 2020 06:02 PM
Joined: Mar 2014
Posts: 1,657
J
Shop Shark
There is non-magnetic stainless and magnetic stainless. And I've seen some plated brass watch screws which would respond to a magnetic screwdriver. Only true way to know is to nick one with a file. If you see brass, you have plated brass. If you don't, you have something else.


Jon

1952 1/2 ton with 1959 235
T5 with 3.07 rear end
Re: Zerk fittings found
Spotbiltxo #1369534 Fri Jul 17 2020 09:18 PM
Joined: Jun 2011
Posts: 3,630
E
Shop Shark
The coil spring in a brass(never seen brass ones) would provide some mag. Attraction.

Ed


'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
Re: Zerk fittings found
Spotbiltxo #1369582 Sat Jul 18 2020 03:07 AM
Joined: Jan 2017
Posts: 133
D
Shop Shark
The better quality SS in the 316 range will be non magnetic. The "cheaper" down in the 304 range will be slightly magnetic and less corrosion resistent.


38 Chevy 1/2 ton being resto-moded
65 AC Cobra replica
USAF vet
Re: Zerk fittings found
Spotbiltxo #1369614 Sat Jul 18 2020 02:08 PM
Joined: Apr 2016
Posts: 554
M
Shop Shark
I bought an assortment of 316 stainless Zerks and replace everything with them. I also bought a bag of the covers to keep them clean. They are a pain to polish but my thumbnails are quite shiny.


Old enough to know better, too young to resist.
Re: Zerk fittings found
mick53 #1369619 Sat Jul 18 2020 02:42 PM
Joined: Sep 2009
Posts: 317
G
Shop Shark
I agree. I greased my whole truck last night, and had to use a wire brush on my drill to clean them off, and then sprayed them with carb cleaner and a fresh rag before applying grease.


-Patrick
1953 Chevrolet 3100
261 / 4-speed / 4:11 / Commercial Red


Moderated by  Justhorsenround 

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