0
As a general rule, a bolt should engage a distancegreater than or equal to its outer diameter. The number of threads engaged can then be calculated from the number of threads per inch on the bolt. So if you are using a 1/4-20 bolt, meaning it has 1/4" diameter and 20 threads per inch, you should engage the bolt 1/4" into the hole, or 5 threads. (20 threads/inch x 1/4 inches)
Why: The shear stress on the threads will be equal to the tensile stress in the shank of the bolt. This means that once you thread the bolt in a distance greater than its diameter, the shank itself will fail before the threads shear off the bolt under tensile load.
Sources: Design of Machinery class at Purdue University, page 10 of the following MIT article: http://web.mit.edu/2.75/resources/FUNdaMENTALs%20Book%20pdf/FUNdaMENTALs%20Topic%206.PDF
What else can I help you with?
How does a sten gun work?
The Sten submachine gun operates by "blowback" cycling, a common method of operation used by many firearms, including many low-powered rifles and pistols. The reciever, a metal tube which retains the operating components, contains a metal cylinder called the bolt, a powerful operating spring, and the sear, a hardened hook which controls the bolt. When ready for firing, the sear holds the bolt in a retracted position with the operating spring compressed. When the trigger is pulled, the sear releases the bolt, and the spring propels it forward at high speed, where it "feeds" a cartridge from the magazine and into the firing chamber. The cartridge stops when it is fully chambered, and the firing pin, protruding from the front of the bolt, strikes the cartridge primer, igniting it and "firing" the cartridge. The cartridge casing, now empty, is thrust backward by the pressure in the chamber, propelling itself and the bolt rearward. The empty casing is ejected from a port in the side of the receiver, and the rearward movement of the bolt is halted by compression of the operating spring,which,again, propels the bolt forward to repeat the cycle. If the trigger is released, the sear catches and holds the bolt in the retracted position, halting the firing sequence. The Sten gun fires at a rate of nine shots per second(550 rounds per minute), or, a thirty-round magazine load in 3.3 seconds. The mode of retaining the bolt retracted when not firing is known as "open bolt" operation,which is both easier to engineer, and also utilized for safety reasons. The chamber of automatic weapons can easily become superheated from prolonged firing, and a cartridge stored in the chamber can be spontaneously ignited by this heat, causing what is called a "cook-off". Open bolt mode keeps the chamber empty, and also exposes the chamber to open air to facilitate cooling. For these reasons, nearly all submachine guns are "open bolt" designs.
What is a sized wrench?
That's a wrench made to a certain size -ie, 10mm, or 7/16, or 14mm . These wrenches can only be used for one size bolt each, as opposed to a Crescent wrench which can be used for many sizes.
Which types of threads used in screw jacks?
There are many various types of screw jacks and mechanical actuators. Examples include metal screw jacks, rotating screw jacks, inverted screw jacks and vertical screw jacks.
How many scfm are in an H size high pressure oxygen cylinder?
SCF = Volumetank x (PSIgtank+PSIatmosphere)/(PSIatmosphere) x (Tstandard)/(Ttank) note that PSIg is your gage pressure of the tank, PSI atmosphere is accepted to be about 14.7 and the temperatures are to be in absoloute (Rankin) and the volume of the cylinder should be in cubic feet. without specifics, it's hard to give an answer to what you are asking, but you should be able to easily figure it out from here.
How rack and pinion is used for indexing mechanism?
you need a rack and pinion nut breaker to which you fix a pinion at the free end ie where nut is placed to be cracked. This is because you need to convert reciprocating motion of the rack and pinion mechanism built in the nut cracker into circular motion. Attach the nut cracker to the collect chuck shaft through the bore of the additional pinion you installed at the free end of the cracker. When you punch the nut cracker vide its handle once it moves the pinion one tooth on the rack. Thus you can rotate ( ie give angular motion to ) the fixed workpiece from one tooth or as many teeth as you like., depending on the pitch of the threads on the rack and pinion. mazHur
What is the pitch distance of pipe threads?
Pipe threads are stated in terms of so many threads per inch. For instance, a bolt designated as 1/4-20 is a 1/4 inch diameter bolt with 20 threads per inch. Divide one inch by 20 to find the pitch distance.
A bolt on A french automobile has 10 threads per centimeterhow many threads would there be in 1 inch of the bolt?
There are 2.54 cm per inch, so multiply the number of threads per cm by 2.54...Make sense? If this helped you, make sure to "Recommend" Kevlarster
How many ftlbs of torque are necessary on 1992 Chevrolet 305 intake bolts?
Small Block Chevrolet Torque Specifications Main cap bolts (oil on threads).....................................................70 ft.-lbs. first set wrench for 45 ft.-lbs and tighten each bolt, then set wrench for 70 ft.-lbs and torque each bolt again. Rod bolts (oil on threads)............................................................45 ft.-lbs. Oil pump bolt (oil on threads).......................................................55 ft.-lbs. Head bolts (sealer on threads).....................................................65 ft.-lbs. Screw-in rocker arm studs (oil on threads)....................................50 ft.-lbs. Cam sprocket bolts (oil on threads)..............................................20 ft.-lbs. Intake manifold bolts (sealer on threads except four corner bolts)....35 ft.-lbs. Harmonic balancer (oil on threads)................................................65 ft.-lbs. Flywheel/flexplate bolts (oil on threads).........................................65 ft.-lbs. Pressure plate bolts (oil on threads)..............................................35 ft.-lbs. These specs are for stock-type bolts, if you are using aftermarket bolts you should follow their recommended torque specifications.
How many threads are in a 3 8ths 24 UNF tapped hole that is 32 thousandths deep?
A 3/8ths 24 bolt has 24 threads per inch (TPI), and a 32 thousandths (0.032) hole that has been completely bottom tapped for 3/8ths 24 fastener will have 24 x .032 or 0.768 threads in it. And yes, that isn't even one complete turn of the bolt before it bottoms out.
How many threads run at the start of JVM?
at the starting of the JVM it handels approx 7000 threads .........
How many words should a scene typically consist of in order to effectively convey its message and engage the reader?
A scene should typically consist of around 500 to 1,500 words to effectively convey its message and engage the reader.
How many threads does a 6-32 screw have?
A #6-32 would have 32 threads per inch.
How many threads per inch does a 12-24 unc3a screw have?
24 threads per inch
How many threads in a piece of computer paper?
1
How many threads were in jesus's cloak?
This is not possible to know.
How many threads are in a little league baseball?
238
How many bolt should be inside a engine block when mounted on a engine stand?
4 bolts should be holding the engine to the engine stand.
