Stripped Stud and Stud Extractors

[llbaker2]

You said lug nuts so I am wondering if the stud is not the normal pressed in type with a round head on the inside ? if it is you just drive it out with a large hammer and replace it the same way with a new one = better check the back side for a round head if so just drive it out it is not threaded into the hub .

The rear wheel has both bolts (4 I think) and studs (2) that thread into the hub. They are not press-in.

 

[bcp]

I think we have a failure to communicate here.

This is what I am thinking of:

Screw & Bolt Extractor Sets - Machining Supplies - Grainger Industrial Supply

This must be what you are thinking of:

PROTO Bolt'/'Stud'/'Screw Extractor Set,10 PC - Screw'/'Bolt Extractor Sets - 2TJ52'|'J69X00 - Grainger Industrial Supply

Bruce

 

[llbaker2]

I think we have a failure to communicate here.

This is what I am thinking of:

Screw & Bolt Extractor Sets - Machining Supplies - Grainger Industrial Supply

This must be what you are thinking of:

PROTO Bolt'/'Stud'/'Screw Extractor Set,10 PC - Screw'/'Bolt Extractor Sets - 2TJ52'|'J69X00 - Grainger Industrial Supply

Bruce

You hit the nail on the head my friend. I am use to referring to the item you were talking about as easy outs. That's what my Dad always called them and he knew everything (or at least I thought so at the time). Sorry for the confusion I should have included a photo or something.

As you suspected I was talking about the socket-like tools that fit over outside of bolt head/shaft or stud as in the second link.

 

[DK35vince]

Easy outs work on bolts that are broken off flush, that you can not get ahold of.
The extractors are for rounded off bolt heads or studs that are sticking out enough to get the extractor on.
Personally I would just weld a nut on the stud and spin the bad stud out and be done with it.
Then I would still get the extractor set for later use, because they can come in handy when you need them.

 

[JimRB]

Bolts and studs are labeled based on the bolt diameter and thread pitch. If I were to dig around in a bolt and studs box (odds and ends box pack rats keep) I could find 3/8" bolts or even 12 mm bolt with different size heads. If you go to the hardware store or Home Depot they have an aisle filled with bolts, nuts and screws labeled by shank size and pitch. Nothing by bolt head size. I think BCP answered one of your questions already.

 

[llbaker2]

Easy outs work on bolts that are broken off flush, that you can not get ahold of.
The extractors are for rounded off bolt heads or studs that are sticking out enough to get the extractor on.
Personally I would just weld a nut on the stud and spin the bad stud out and be done with it.
Then I would still get the extractor set for later use, because they can come in handy when you need them.

Exactly my thoughts. As I said previously the first thing I will try it welding a nut to the stud. If I had them in hand I would try the bolt extractor first but I will have to order them form a web site and don't plan to wait on them but will have on hand for next time. Think I have pretty much convinced myself that the socket style bolt extractors are sized according hex head size. Seems logical. I assume the flutes are tapered and a set will fit a continuous range of head/shaft sizes of standard sized bolts/studs.

 

[Winmac]

The sizing should refer to shank or nominal thread size.
But with the propagation of Chinese junk ignoring engineering standards nothing would surprise me any more.

 

[llbaker2]

Bolts and studs are labeled based on the bolt diameter and thread pitch. If I were to dig around in a bolt and studs box (odds and ends box pack rats keep) I could find 3/8" bolts or even 12 mm bolt with different size heads. If you go to the hardware store or Home Depot they have an aisle filled with bolts, nuts and screws labeled by shank size and pitch. Nothing by bolt head size. I think BCP answered one of your questions already.

Thanks for your comments JimRB. As far as I know bolts are not normally labeled with size. Hardened bolts are labeled with hardness values (metric) or symbols (SAE). Yes they are sized according to nominal bolt diameter and pitch and yes bolts sometimes have different sized heads. I'm aware of all this. I don't dispute this. There are standard sizes though which include hex head size. All this was never in question. I attempted to pointed out by listing examples that there is a big difference between hex size and shaft size in an effort to try to clarify my original question. My question was how are socket style bolt extractors sized. As I said above I think I have convinced myself that they are sized according to hex size just like regular wrenches and sockets. Doesn't seem logical to size them by nominal shaft size (stud size) when they are meant for use on both rounded bolt heads and/or studs when convention is to size to hex size (as with wrenches and sockets).

Thanks to all for your comments. If anyone has personal experience using socket style bolt extractors and can verify or dispute my conclusions your input would be appreciated.

 

[llbaker2]

Vince I stand corrected. I was not aware you had a set of these socket style extractors. Thanks so much for sharing your experience with me. I can now purchase a set with confidence they will fit my need. I am surprised that they are sized to nominal shaft size rather than hex size.

 

[DK35vince]

I have looked a several of the Craftsman extractor kits online since your post.
It seems like each kit I look at has a different # extractor listed as fitting a different size bolt.
So the # sizing for the extractor evidently means nothing. Craftsmen doen't seem to have a consistent sizing # on their extractor kits
The one kit shows #8 extractor fitting 16mm, the next kit shows a #10 extractor fitting 16mm.
I guess you just grab one out of the kit that fits and use it.
That's all I have ever done. I never payed any attention to the sizing #