it's determined by the hardness (and age, wear, environmental conditions, etc...) of a material. many tests are done by manufacturers to see statistaclly when they will break down.
I strip the audio from DVD with a DVD Audio Ripper,
A grade 5 hex bolt has 3 radial lines formed into the top of the head. Bolt manufacturers can provide listings of bolt markings and their corresponding strength ratings.
not strike for another 30 seconds
a strip of wood grinded down to write on
It indicates how many staples per strip. S.F. 1 and S.F. 4 are 210 staples/strip. S.F. 3 is 105 staples/strip, i.e. a half strip. Larger staplers take the full strip, smaller ones take the half. The S.F. actually stands for "Stapler Food" which personally I find a little stupid, but that's what it stands for... Also, S.F. 1 are standard-quality staples while S.F. 3 and S.F. 4 staples are premium-quality staples.
1/2"x2" m.s bolt
take bolt off
Measure the mass (in kilograms) and length (in metres) of the strip. Divide the first by the other.
Gauges to allow a person to calculate nut bolt size are widely available. Measuring the thread manually can be unreliable so it is far preferable to use a gauge.
45
assuming your bolt is visible, check to make sure that there is atleast something left of the bolt head. If so, sears sells a set of specialized strip sockets by craftsman. some parts stores will Cary IRWIN brand, who also has a good set of strip sockets. these tools are not inexpensive, but do come in handy if you work on your own vehicle.
Divide 25,000 by the supply voltage to get the current.
By using a micrometer
Torque is not the type of bolt but a type of wrench used to tighten bolts. A torque wrench will tell you how tight a bolt is tightened like 60lb of torque or tighten to 80lb of torque so a bolt will be tight enough to stay in but not too tight that you strip the bolt.
Plumbers tape. its a metal strip with holes in to put a small nut&bolt through
It may gall if it is of the same material as the bolt. It may need to be lubricated, that will prevent this; also, if over-torqued it may gall or strip the thread.
More leverage. If you are using a wrench, put a piece of pipe over it and use that to make the lever longer. Apply firm steady preasure and intermitently increase how much torque you give it. Be sure to use the right size wrench or you may strip the bolt. In which case throw your craftsman wrenches away and buy snap-on, which will still take your stripped bolt out if you do strip it. If the bolt is rusty you may want to try letting some penetrating oil loosen it up first.