How Metric Bolts are Measured

Learn how metric bolts and screws are measured. I didn't understand metric bolt measurements and did some research. Find out what I learned. It's pretty simple once you know.

@HacksbyDad

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[keetor]

Great great content and it gets right to the point. No long, unnecessary intros etc. Love it

[Hank_E]

One additional "good to know" is if you need to drill and tap a hole just remove the pitch lenght from the diameter and use that drill size. M6*1 use 5mm drill, M8*1, 25 use 6, 8mm (difficult to find 6, 75mm)

[savedfaves]

Best video on Youtube about this. Thanks.

[dougpetersen]

This video needs more likes. So helpful. Thank you!

[chopstickftw]

STRAIGHT TO THE POINT!!
subscribed, very well explained and simple and thank you :)

[aggorjefferson]

Thank you very much! You saved another young engineer

[sandrarichardson]

Great video. Simple yet covered what someone needs to know. And good demonstration of using the tools. How bolts are measured...it was all good. Jesus bless.

[freebornjohn]

This is a great video especially the part on identifying threads.

[adamdejesus]

It can be confusing to look at thread pitch because SAE and metric are kind of opposite each other. An SAE #10 coarse is 24, fine is 32 (bigger number) but an M6 coarse is 1.00, fine is .75 (smaller number). The difference is "threads per inch" versus "millimeters per thread". You explained the metric side very well and now I have my head screwed on straight.

[drengskap]

It's a lot easier to use a thread pitch gauge to measure pitch than trying to line the threads up with a ruler.

[propoker]

Thank you, this video helped me loads

[slepper]

Very informative, thanks for your time. Best wishes.

[nitipuri]

Great video. It helped me a lot! Thank you

[RGRGJKK]

Pura vida mi amigo great video I am learn an interesting topic pura vida

[spelunkerd]

Thread checkers that are arranged on a plate are good for the hardware store, but on the vehicle you often can't move the bolt or nut to the wall to check pitch. A more mobile option is a string of thread checkers, which come in either metric or SAE, strung together in a wire with both female and male threads. That strategy works best if you've got a threaded opening that can't be moved. Of course you can make your own from labeled individual bolts and nuts, but assembled thread checkers aren't that expensive and it saves a couple of hours to put it all together.

[wasimraja]

how we have arrived when its M6 multiplying 1.25 x4 mm? any guide
is there for this

[LLSZXYY]

I gotta put one of these on the back of my bike on the fender so I have to use a screwdriver or just twist it all on?