Washer size question

[bmc1979]

So from reading here I know the size to use is a '0'. My question is that I went to probably the biggest hobby store here in Calgary (PM Hobbycraft)and they had some washers listed as 0-80. Are these the same thing? When I was eyeing them they looked like they would be too big but since I've never done this before I could be wrong. They also carried 2mm washers but I'm pretty sure those are too big. Although they had 1/16"rod, I'm having a tough time finding a place that carries washers small enough.

 

[thirdeye]

0-80 is a commonly used size with 1/16 rod.

 

[Hair apparent]

0-80 is used in HO guage models, so you should be able to get it through a hobby shop. It is also used in electronics, so a fastener supply house should be able to help you as well. Some fastener suppliers only deal with companies, mot the general public, so you may have to call around.

 

[bmc1979]

Thanks guys for the responses. I didn't pick them up yesterday as I was unsure if they were what I needed. At least I know now. I'm assuming the first number is the size, hence the '0'. Didn't know what the 80 was for though and I didn't want to buy something that I wouldnt' or couldn't use. Thanks again.

 

[Hair apparent]

Thanks guys for the responses. I didn't pick them up yesterday as I was unsure if they were what I needed. At least I know now. I'm assuming the first number is the size, hence the '0'. Didn't know what the 80 was for though and I didn't want to buy something that I wouldnt' or couldn't use. Thanks again.

0 is the size, 80 is the amount of threads per inch. A 1/4-20 bolt would be 1/4 diameter, 20 threads per inch. 0-80 is a fine pitch thread, as opposed to a coarse thread, such as a 0-48.

 

[BillEllis]

Thanks guys for the responses. I didn't pick them up yesterday as I was unsure if they were what I needed. At least I know now. I'm assuming the first number is the size, hence the '0'. Didn't know what the 80 was for though and I didn't want to buy something that I wouldnt' or couldn't use. Thanks again.

size 0 and 80 threads per inch

 

[BillEllis]

0 is the size, 80 is the amount of threads per inch. A 1/4-20 bolt would be 1/4 diameter, 20 threads per inch. 0-80 is a fine pitch thread, as opposed to a coarse thread, such as a 0-48.

oops! Beat me to it. Oh well, at least he will be less likely to forget after reading it twice.

 

[bradyarz]

0 is the size, 80 is the amount of threads per inch. A 1/4-20 bolt would be 1/4 diameter, 20 threads per inch. 0-80 is a fine pitch thread, as opposed to a coarse thread, such as a 0-48.

size 0 and 80 threads per inch

i have a thorough understanding of threads and nomenclature... but why include that number on a washer? it should work for anything that's size 0...

 

[BillEllis]

i have a thorough understanding of threads and nomenclature... but why include that number on a washer? it should work for anything that's size 0...

To be technical, you are absolutely correct. It (80) is not needed to be part of the description for a washer. I think the reference might have been to just get the washers that are used for 0-80 screws/bolts to simplify the fellow's search. And if it had been on the packaging, I think it may have been put there to alert the less knowledgeable hobbyists to buy matching numbered items.

 

[bmc1979]

And if it had been on the packaging, I think it may have been put there to alert the less knowledgeable hobbyists to buy matching numbered items.

Now I think about it, these were on a 4-sided rotating rack, and I think you're probably right with your assessment Bill because all the items on that side had '80' on the packaging. Also, if I remember correctly, the other sides had '90', '75' and something else I can't remember.

Thanks again for all the info everyone.

 

[Hair apparent]

i have a thorough understanding of threads and nomenclature... but why include that number on a washer? it should work for anything that's size 0...

I'm just guessing here, but with #0 being so small, mebbe a 0-48 won't fit. Usually a fine thread(SAE) washer has a closer tolerance to the pitch size, a coarse thread(USS) is a "sloppier" fit. So, technically it should be a 0 SAE washer.

 

[BillEllis]

I'm just guessing here, but with #0 being so small, mebbe a 0-48 won't fit. Usually a fine thread(SAE) washer has a closer tolerance to the pitch size, a coarse thread(USS) is a "sloppier" fit. So, technically it should be a 0 SAE washer.

I'm not quite sure how "guessing" anything will help.

Size 0 washers will work for 1/16th inch rod. Period.

Size 00 washers won't work without reaming them to .062 inch. Size 1 washers won't work by themselves.