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Phillips vs JIS vessel screwdrivers #1331867 Wed Oct 30 2019 03:28 AM
Joined: Apr 2002
Posts: 1,537
F
Fox Offline OP
Shop Shark
Have you ever heard of these? If you haven’t, do some google research into JIS and you might discover why you’ve been stripping Phillips headed screws and such so much. I think I’m going to get a set of vessels. I have done the dreaded stripped bolt head on rotors before. What a PITA.

Last edited by Fox; Thu Oct 31 2019 03:51 AM.

In the Stovebolt Gallery
More pictures here

1951 GMC 9430 1 ton dually—-Shiny!

1970 Chevrolet C10 - Grandpa’s- My first truck.—in progress to shiny
1972 Chevrolet C20- rusted
1970 Chevrolet K20 Suburban—rusted.
1950 Chevrolet 1300- in progress to shiny.

Parts trucks-
1951 GMC 9300
1951-GMC 9430
1951- Chevrolet 1300
Re: Phillips vs JIS vessel screwdrivers [Re: Fox] #1331895 Wed Oct 30 2019 01:39 PM
Joined: Feb 2019
Posts: 380
P
Phak1 Offline
Shop Shark
Interesting Fox. I just googled it and JIS stands for ”Japanese Industry Standard”. Hopefully we won’t find them on our “Stovebolts”.

I do know what you mean about stripping screw heads. Now I know what to look for.

https://chapmanmfg.com/blogs/news/phillips-bits-vs-jis-bits-whats-the-difference

Thanks Fox!


Phil

1952 Chevrolet 3100 w/‘59 235 & hydraulic lifters
“Three on the Tree” & 4:11 torque tube
12v w/ Alternator
Re: Phillips vs JIS vessel screwdrivers [Re: Fox] #1331899 Wed Oct 30 2019 01:50 PM
Joined: Aug 2001
Posts: 3,830
2-Ton Offline
Shop Shark
Good info! I did not know that.

Thanks For Sharing
Don


Of all the things I've lost in my life, I miss my mind the most!

1967 GMC 9500 Fire Ladder Truck
"The Flag Pole"
In the Stovebolt Gallery
More pix on Photobucket
'46 2-Ton grain truck
'48 3/4-ton grain truck
'50 2-ton flatbed
'54 Pontiac Straight Eight
'70 American LaFrance pumper fire truck.
Re: Phillips vs JIS vessel screwdrivers [Re: Fox] #1331929 Wed Oct 30 2019 05:03 PM
Joined: Dec 2015
Posts: 2,028
69Cuda Offline
Big Bolt Forum Moderator
interesting.....


Mike

1955 Chevy 6400 ex-flatbed (no bed now!)
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1958 Chevy 6400 flatbed W/dump
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1959 Chevy Suburban Owned for almost 20 years, Daily Driver -- sold May 2016
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Sufficient unto the day is the evil thereof
Re: Phillips vs JIS vessel screwdrivers [Re: Fox] #1331933 Wed Oct 30 2019 06:31 PM
Joined: Nov 2004
Posts: 1,546
J
J Lucas Offline
Shop Shark
I have noticed screws with that marking in the past. Now I know what it stands for. I will be buying a set of JIS screwdrivers in the near future. thumbs_up

Thanks for the info.

John


J Lucas





1941 Chevy 1/2-Ton
1942 Chevy 1.5-Ton SWB
1959 Chevy Apache 31 Fleetside
1959 Chevy Apache 32 Fleetside
1959 Chevy Viking 40

My Flicker Photos!

Re: Phillips vs JIS vessel screwdrivers [Re: Fox] #1331952 Wed Oct 30 2019 08:02 PM
Joined: May 2015
Posts: 1,576
K
klhansen Offline
Shop Shark
So does a JIS screwdriver work in Phillips screws (not cam out like Phillips drivers tend to do)?

Phillips screws and drivers were designed so that it limited the torque applied to keep ham handed assembly workers from stripping threads on the screws.

From the info presented, JIS screws and drivers eliminate the cam-out issue, but it's not clear that a JIS driver will work any better than a Phillips driver in a Phillips screw.

Robertson (square drive), Allen (hex recess), and torx (modified hex) serve the same function (eliminate cam-out) but of course you can't use those on Phillips screws.


Kevin
First car '29 Ford Special Coupe
#2 - '29 Ford pickup restored from the ground up.
Newest Project - 51 Chevy 3100 work truck. Photos
Re: Phillips vs JIS vessel screwdrivers [Re: Fox] #1331960 Wed Oct 30 2019 08:35 PM
Joined: Feb 2019
Posts: 380
P
Phak1 Offline
Shop Shark
I’ve looked on several sites and they all said the JIS drivers work on Phillips heads. None said they worked any better than a Phillips bit. The reason I found it really interesting is, in the past I’ve ran across many screws heads that I thought to be Phillips screws and a brand new driver didn’t fit tight, so they would strip before getting them tight. I surmised they were cheep Chinese made fasteners but I may have been wrong. I’ll buy some JIS bits and maybe that will solve that problem.


Phil

1952 Chevrolet 3100 w/‘59 235 & hydraulic lifters
“Three on the Tree” & 4:11 torque tube
12v w/ Alternator
Re: Phillips vs JIS vessel screwdrivers [Re: Fox] #1332025 Thu Oct 31 2019 03:50 AM
Joined: Apr 2002
Posts: 1,537
F
Fox Offline OP
Shop Shark
My friend told me about this. He said he will never by a Phillips again. Vessels work both ways, but the Phillips does not. It can’t hurt to try.
I know what’s on my Christmas list now!

Last edited by Fox; Thu Oct 31 2019 03:50 AM.

In the Stovebolt Gallery
More pictures here

1951 GMC 9430 1 ton dually—-Shiny!

1970 Chevrolet C10 - Grandpa’s- My first truck.—in progress to shiny
1972 Chevrolet C20- rusted
1970 Chevrolet K20 Suburban—rusted.
1950 Chevrolet 1300- in progress to shiny.

Parts trucks-
1951 GMC 9300
1951-GMC 9430
1951- Chevrolet 1300
Re: Phillips vs JIS vessel screwdrivers [Re: Fox] #1332198 Fri Nov 01 2019 08:47 PM
Joined: Feb 2004
Posts: 19,273
H
Hotrod Lincoln Offline
Boltergeist
There are several "cross point" screw head designs, and none of them interchange exactly.

Phillips
JIS
Posidriv
Reed & Prince

The R&P is especially troublesome, as makers of cheap screwdriver sets included them instead of Phillips. Phillips was a patened design a few years ago, and manufacturers had to pay a royalty to produce their drivers. If a cross point screwdriver has a sharp point and straight-taper flutes, it's a Reed & Prince, and it will destroy a Phillips screw instantly. R&P was used in assembling some types of furniture- - - -never in automotive applications.


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: Phillips vs JIS vessel screwdrivers [Re: Phak1] #1333356 Mon Nov 11 2019 06:10 PM
Joined: Nov 2019
Posts: 2
C
ChapmanMFG Offline
Moderated
Glad to hear our website was helpful! Thanks for posting, there's a lot of confusion (understandably) about JIS vs. Phillips.

Side note, we have a company '59 Apache that we restored, you can see the pictures here: https://www.facebook.com/pg/ChapmanMFG/photos/?tab=album&album_id=367021406703893

Joel
VP @ Chapman MFG

Originally Posted by Phak1
Interesting Fox. I just googled it and JIS stands for ”Japanese Industry Standard”. Hopefully we won’t find them on our “Stovebolts”.

I do know what you mean about stripping screw heads. Now I know what to look for.

https://chapmanmfg.com/blogs/news/phillips-bits-vs-jis-bits-whats-the-difference

Thanks Fox!


Joel
VP @ Chapman MFG
Re: Phillips vs JIS vessel screwdrivers [Re: Fox] #1333659 Wed Nov 13 2019 09:33 PM
Joined: Dec 2018
Posts: 447
A
Apache1 Offline
Shop Shark
Glad to see another '59 Apache out there. The finished product looks GREAT! All that participated in the different stages of the build have allot to be proud of.

Last edited by Apache1; Wed Nov 13 2019 09:34 PM.

1959 Apache 3100 Fleetside SWB (Shop Truck) (modified)




Re: Phillips vs JIS vessel screwdrivers [Re: Apache1] #1334794 Fri Nov 22 2019 02:34 PM
Joined: Nov 2019
Posts: 2
C
ChapmanMFG Offline
Moderated
Thanks, it was a labor intensive but fun project! We love the truck, the color combo turns a lot of heads (especially kids) at car shows.


Joel
VP @ Chapman MFG
Re: Phillips vs JIS vessel screwdrivers [Re: Fox] #1335296 Tue Nov 26 2019 11:02 AM
Joined: Nov 1995
Posts: 4,266
J
John Milliman Offline
Founder/Developer
Glad to see there is still some real industry/tool and die manufacturing in Connecticut thumbs_up

And welcome to Stovebolt.com!


John

'49 Chevrolet 3804

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