New England B.S. Thread

Fair point, won't hold up to winching. My rear recovery points will open up like a can opener if I used them, that's why I have the hitch one.

I remember seeing a picture of one ripped open like a tin can when I was looking at the bumper, but it was the cheapest option (including a plastic OEM replacement) so I went with it. I can't find that picture now though.

 

Thanks these are the exact options I was thinking of. My truck is a farm truck. I drive it in the woods, fields, and live on dirt. Im not offroading recreationally and have seemed to avoid getting myself stuck for the most part so Im not worried about the undersized winch plate though I appreciate someone pointing it out! Adding a winch/recovery points to my truck now or at any point I would consider a fun bonus but not a necessity to get what I need out of it.

Thanks

 

Changing the spark plugs this morning and everything was cool right up until the last ignition coil bolt rounded right off. Thank God it was the easiest one to reach, passenger side/firewall end, and I was able to file it down to hammer fit an 11/32 socket. Got it tight enough to run to the getting spot for a replacement (M6x1.0x25mm).

Full set of stainless JIS flange head replacements on the way because I can't help but being a certain way.

 

Love/hate relationship with JIS screws. Usually because when I find them, they're already buggered upbut someone using the wrong screwdriver...

 

Might be a controversial opinion from an engineer but - if the application requires enough torque that you strip the heads by using the wrong JIS/PH driver for the bit....Then it was the wrong fastener head for the application, period.

 

I find that a PH drive cams out under remarkably little force sometimes in a JIS fastener, especially if it was put on tighter than necessary and then had some other adversity - corrosion, damage, etc. to the threads or to the fastener head. It's very very rare that I have a JIS cam out in a JIS, and they seem to actually do better in PH fasteners. Fun fact - PH were designed to cam out at max torque for the application, and that application was a sheet metal assembly line in the ancient past, where they didn't actually care if the fastener left the factory boogered as long as it got tight enough before doing so. JIS were designed to work better for what PH so often (and IMO mostly inappropriately) get used for these days, which is reusable fasteners. Then again, they also get used inappropriately for e.g. single use fasteners (think wood screws) where they strip to shit unless you're using laboratory grade wood and a fresh, clean driver for every fastener.

I guess what I'm saying is, PH is basically garbage and needs to go. It's friendlier to modern manufacturing and tools than the old slot drive, but that's about it. The Canadastanis gave us Robertson for all the crap PH is still being used for.

 

Once again, Tacoma World has me shopping for something I didn't know existed ten minutes ago and now have to have...in this case case, JIS screwdrivers.

 

PH screws were designed for 1930’s Cadillac running boards and were specifically designed to cam out when torque was reached. Prior to that they were using a slotted screw. PH has designed a new driver that has teeth on the sidewall of the driver to not cam out as easily. I forget what the trade name is for them. It works well.

 

There's a couple updates to the Phillips, like Phillips II, "ACR Ribbed" or something which I think is what you're talking about, Pozidrive, Superdrive...

And to be terribly pedantic, I don't think PH was designed FOR the Cadillac line, it's just that GM plant was the first major adopter, as they liked that the screws were self-centering (on the driver) and cammed at torque, making production more efficient.

 

I believe torsion or threaded tip… at least that’s what we call them

 

Years ago, I worked for GE Corporate as their chief fasteners specification engineer. The PH tech rep provided a presentation that had PH designed for Cadillac running boards.

 

The trade name I couldn’t remember is “ACR” which stands for Anti Cam Ribs.

 

JIS > PH... until someone uses PH in JIS.

^^^^^ This.

Haha, I keep a couple sets.

 

@Chasespeed i finally got around to getting a bottle of argon. First tig bead in a decade.

scratch start is interesting

Thanks for the torch

 

Yeah, takes a bit of getting used to. Go through tungsten faster, but, simple and effective out in the field, with a little Maxstar or equivalent.
And you're welcome.
Hell, I'd forgotten I sent that up to you.

 

Ive seen people use the filler rod to strike it or just the tungsten, I tried both ways and not sure which one I can get to work better.

 

I do better with the tungsten personally.

 

I'm having Deja Vu all over again! I had this whole conversation a week ago, including the JIS part. Someone said that the PH was invented during the late 1930s to make attaching airplane panels to the ribs easier. Nay, Nay, said I since all of that was done with rivets. Then we talked about Dzus fasteners for cowlings.

Anyway, I'll take PH over slotted any day. Outlets and switches are now coming with dual mode screws, although cover plates aren't going to change yet.

Whenever possible, I'll use Torx heads, but have some Robertson square head screws for some reason. I also have hex heads, both metric and SAE. Just weird stuff I collected over the years.

I have absolutely no reason to buy a JIS bit or driver, but of course will.

 

I rarely come across any Robertson screws. I think I have a ton of bits from different screwdriver/drill sets. I think my Craftsman/Klein multi-bit screwdriver is the only thing to come with Robertson bits.

 

Come across it alot with electrical items.
He'll, I just uncrated a screw compressor Tuesday that was all done with Roberston #2 wood screws. That was a new one for me.