Nice. The Tap-Set you showed... while the spiral flute one does indeed allow to tap blind holes the main difference between the two taps is that the first one (gun tap style) pushes the cut metal ahead of itself (and thus is better suited for through-holes), the fluted tap ejects the cutting to the top (pulls them out). And as such can tap holes much further to the bottom of blind holes.
essential, ingenious, ubiquitous yet foreign to most of us...they should teach this in school. Please don't stop this series but maybe in a future video you could really explain whats going on with 'gauge blocks"..wikipedia has no idea except wringing is some freaky magic. thankyou
I agree wholeheartedly, a class in school for basic life skills would be a great idea. I would certainly have benefitted from one. As regards gauge blocks I have to admit defeat, despite explanations of air pressure and high tolerances I still think they use magic! If I ever get a set of gauge blocks good enough to demonstrate wringing I’ll certainly make a video about them. Thks.
Thanks for the update and the way you explain things thanks once again for the efforts and for sharing this with us. U are a great teacher appreciate that 🙏👍🇩🇰
Excellent video. Don't know if things have changed now but when I did my apprenticeship, UNC & UNF high tensile bolts were stamped with the letter S on the head and BSW/BSF with letter R
Thank you for the kind words. I have to admit I’ve never come across a BSW/BSF bolt, they are particularly rare here at this stage. Now and again you might see a pipe thread depending on how old a machine is. They have largely been superseded by Metric, BSP or even NPT threads.
Good video, Is it possible to have a Whitworth thread on a metric screw? I have a 14mm dia. bolt, but does that work with imperial ? My thread gauge has 13g Whitworth written on the one that fits. I'm confused.
Hi there Billy Bunter, I had a look at this and I found that both the 2mm metric thread gauge and the 13G Whitworth thread both mate up nicely with a metric bolt with a 2mm thread pitch. Metric bolts have a 60 degree angle and the Whitworth have 55 degrees and I don't think the difference is visible to the eye when you offer the gauges up to the bolt. At least not to my eye anyway. Generally bolt diameters measure in slightly under their nominal size i.e. an M16 bolt which is 16mm nominal measures in at 15.8 mm, an M12 measures in at 11.8 mm approx. This depends on the individual manufacturer as to how tight the fit is. If your bolt measures in exactly at 14mm then it probably isn't a metric M14, this should have a measured value of 13.7 something or 13.8 something to allow clearance. 14mm converted to imperial gives us 0.551 inches, there is an imperial 1/2 inch UNC bolt with 13 threads per inch so that is something to consider although quite a bit smaller as regards measured/nominal. I don't know where you're based as if located in the States coming across an M14 bolt would be unlikely, if rest of the world based then an M14 is possible. Some suggestions then: If the bolt came off a machine then look up a parts list for the machine and it might have the diameter of the bolt listed as a spare. Bring your bolt to a hardware shop and try to thread on a 2mm M14 nut. And try a half inch imperial nut as well. Metric bolts don't have Whitworth threads so we can be sure of that anyway. Whitworth would also be very uncommon to come across although I have no idea what the bolt came off so maybe you have an old lathe or milling machine........ Hope this helps steer you in some way.
@@WobbleMatic A very big thank you. I read your reply and it has now been sorted. It was a metric 14mm bolt with a 2mm pitch. Not the imperial one. It's so confusing with all these different kinds. Thanks again.
The properties of the material are given by 4.6 8.8 10.9 12.9 numbers. google is your friend. For hydraulic flanges ( 600 bar / 8500 lbs.. ) we used 12.9 bolts.
Nice. The Tap-Set you showed... while the spiral flute one does indeed allow to tap blind holes the main difference between the two taps is that the first one (gun tap style) pushes the cut metal ahead of itself (and thus is better suited for through-holes), the fluted tap ejects the cutting to the top (pulls them out). And as such can tap holes much further to the bottom of blind holes.
Thanks for that, great to learn always. I'm far from expert!
Excellent video. BTW; the 'B' in 'BSW', 'BSF', and 'BSPT' = 'BRITISH'!😀 Credit where it's due, I think...
Riviting
Thank you
essential, ingenious, ubiquitous yet foreign to most of us...they should teach this in school. Please don't stop this series but maybe in a future video you could really explain whats going on with 'gauge blocks"..wikipedia has no idea except wringing is some freaky magic. thankyou
I agree wholeheartedly, a class in school for basic life skills would be a great idea. I would certainly have benefitted from one. As regards gauge blocks I have to admit defeat, despite explanations of air pressure and high tolerances I still think they use magic! If I ever get a set of gauge blocks good enough to demonstrate wringing I’ll certainly make a video about them. Thks.
What a simple and great explanation!,need more such videos 👏👏👏👏
Thank you, always great to get feedback like that.
Thanks for sharing. 🙋
You're very welcome.
Thanks for the update and the way you explain things thanks once again for the efforts and for sharing this with us. U are a great teacher appreciate that 🙏👍🇩🇰
Thank you taking taking the time to comment like that. It's great when I see somebody getting a bit of use from the videos.
Where did you get the thread measurement guide?
It came with a set of taps and dies I got. You can pick them up off Amazon (definitely Amazon Europe anyway) for about €15.
“Just nuts and bolts.”
-Samurai Jack
Had to look that up but yes “Just nuts and bolts”
Excellent video. Don't know if things have changed now but when I did my apprenticeship, UNC & UNF high tensile bolts were stamped with the letter S on the head and BSW/BSF with letter R
Thank you for the kind words. I have to admit I’ve never come across a BSW/BSF bolt, they are particularly rare here at this stage. Now and again you might see a pipe thread depending on how old a machine is. They have largely been superseded by Metric, BSP or even NPT threads.
I really appreciated your video. It's so in depth, but direct to the point. Thank you so much~! I learned a lot.
Delighted you found it good and thank you very much for taking the time to comment.
Looking good and just come across this video and channel, we will be back.
Thank you. Hopefully these videos will be of some use.
Excelente
Thank you. Glad you found it useful.
thanks for sharing. i've seen that tarkka vid before it was great. spring washer? didn't they say those were useless?
They did but I've found them ok generally. Sort of a better than nothing type of thing!
Appreciate the feedback.
Thanks for an awesome reference video for all things nuts and bolts!
Glad you found it useful and thank you for the kind words.
Good video, Is it possible to have a Whitworth thread on a metric screw? I have a 14mm dia. bolt, but does that work with imperial ? My thread gauge has 13g Whitworth written on the one that fits. I'm confused.
Hi there Billy Bunter,
I had a look at this and I found that both the 2mm metric thread gauge and the 13G Whitworth thread both mate up nicely with a metric bolt with a 2mm thread pitch.
Metric bolts have a 60 degree angle and the Whitworth have 55 degrees and I don't think the difference is visible to the eye when you offer the gauges up to the bolt. At least not to my eye anyway.
Generally bolt diameters measure in slightly under their nominal size i.e. an M16 bolt which is 16mm nominal measures in at 15.8 mm, an M12 measures in at 11.8 mm approx. This depends on the individual manufacturer as to how tight the fit is.
If your bolt measures in exactly at 14mm then it probably isn't a metric M14, this should have a measured value of 13.7 something or 13.8 something to allow clearance.
14mm converted to imperial gives us 0.551 inches, there is an imperial 1/2 inch UNC bolt with 13 threads per inch so that is something to consider although quite a bit smaller as regards measured/nominal.
I don't know where you're based as if located in the States coming across an M14 bolt would be unlikely, if rest of the world based then an M14 is possible.
Some suggestions then:
If the bolt came off a machine then look up a parts list for the machine and it might have the diameter of the bolt listed as a spare.
Bring your bolt to a hardware shop and try to thread on a 2mm M14 nut. And try a half inch imperial nut as well.
Metric bolts don't have Whitworth threads so we can be sure of that anyway. Whitworth would also be very uncommon to come across although I have no idea what the bolt came off so maybe you have an old lathe or milling machine........
Hope this helps steer you in some way.
@@WobbleMatic A very big thank you. I read your reply and it has now been sorted. It was a metric 14mm bolt with a 2mm pitch. Not the imperial one. It's so confusing with all these different kinds. Thanks again.
luv this, very interesting
Thank you, always good to hear back.
Do you know of a bolt that allows for compression and expansion vertically if the bolt is verticality mounted?
Unfortunately I don't. Generally springs are used to achieve compression and expansion capability in those circumstances.
The properties of the material are given by 4.6 8.8 10.9 12.9 numbers. google is your friend. For hydraulic flanges ( 600 bar / 8500 lbs.. ) we used 12.9 bolts.
We used 12.9 bolts because 8.8 were too elastic, and due to hydraulc shocks the flange O-rings were blown out.