0
Well, most of the threaded fasteners used in general applications have the following disadvantages:
1. Continued exposure to vibration tends to loosen the fastener.
2. If the fasteners are not creep resistant, they will fail at elevated temperatures.
3. The sharp edges formed in the threads of the members acts as stress concentration regions and is undesirable. This is to some extent overcome by introducing a small radius at the crests and troughs of the threads.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What are the types of proprietary fasteners that are used on fabricated assemblies?
i had this in my level 3
What is ASTM equivalent to BS EN 12329?
For fasteners it would be ASTM F1941M
What are high tensile fasteners?
Bhalla Fasteners is high tensile industrial fastener manufacturing company, producing fasteners for Earth-Moving equipments and automobile components.We are best fasteners manufacturers in Ludhiana.
What is GM 500 M 9.8 screw?
GM500M: Mechanical and Material Requirements for Metric Externally Threaded Fasteners. This standard covers the mechanical and material requirements for six property classes of carbon and alloy steel externally threaded metric fasteners in nominal thread diameters M1.6 to M36, inclusive, suitable for use in general engineering applications. Products included are bolts, screws, studs, U-bolts and sems and hardness of HRC39 max. Tapping screws, thread rolling screws, self drilling tapping screws and set-screws are NOT included. The term "stud" as referred to herein applies to a cylindrical rod of moderate length, threaded on either one or both ends or throughout its entire length. It does not apply to headed, collared or similar products which are more closely characterized by requirements shown herein for bolts. For specification purposes, this standard treats U-bolts as studs. Thus, wherever, the word "studs" appears, "U-bolts" is also implied. U-bolts covered by this standard are those used primarily in the suspension and related areas of vehicles. (Designers should recognize that the "U" configuration may not sustain a load equivalent to two bolts or studs of the same size and grade; thus actual load carrying capacity of U-bolts should be determined by saddle load tests.) Requirements for the 6 property classes, 4.6, 4.8, 5.8, 9.8, and 10.9 are essentially identical with requirements given for these classes in ISO 898/1 and ASTM F568.
Why are some machines built with mechanical disadvantage?
For flexibility or movement. For example most of our bodies joints have a mechanical disadvantage for the simple reason we gain range of motion and flexibility.
What individual was most responsible for threaded fasteners?
the English inventor Henry Maudslay," according to The Heritage of Mechanical Fasteners.
What sort of bag fasteners are there?
Velcro, buttons, ribbon, toggles, plastic buckles, magnetic fasteners.
Which way does the nut come off a riding lawn mower?
Commonly counterclockwise. Most left-handed threaded fasteners will have some marking.
How far back in time does the fastener industry go?
In the fifteenth century threaded fasteners began to appear in common usage. In this century, the first printing press was held together and run by a screw.
What is the advantage of using threaded fasteners to secure structural components as opposed to welding or adhesives?
It is easier to remove something screwed in than something glued or welded in. Further threaded fasteners go deeper than adhesives, giving more of the object to hold onto than just the surface areas. This is good for anything attaching to wood which is a softer material. Stainless steel doesn't weld too well, particularly to non-stainless steel, so fasteners may prove an easier alternative. As I heard that stainless steel is cheaper it can save money as well. Different types of metal or even different thicknesses of a metal can be hard to weld or just may not be weldable at all and so fasteners are needed. Sometimes a weld can can be brittle and snap or an adhesive wear away from small movements. Fasteners can be more reliable if you're not a pro. Fasteners can be cheaper as well in many circumstances. A drill is usually cheaper than a MIG Welder. lol.
What is the main disadvantage of Luque rods?
The main disadvantage is that the risk of injury to the nerves and spinal cord is higher than with a some other forms of instrumentation. This is because wires must be threaded through each vertebra near the spinal column.
List three uses of threaded fasteners?
1. they are used in making furniture ( couches/chairs ) 2. they are used to hold parts of machines together 3. they are also used in bikes to hold the seat etc.
fasteners supplier and manufacturers?
Bhalla fasteners is the best fasteners supplier and manufacturers in india
What is the difference between left-hand thread and right-hand thread?
The difference between left- and right-hand thread is that one is turned in a given direction to tighten the fastener, and the other is turned in the opposite direction to tighten the fastener. Let's look a bit more closely.Most fasteners with threads are turned clockwise to tighten them. (This is true for a nut, and for a bolt, you'd be looking at the head with the threads away from you.) These are right-hand threaded fasteners. These fasteners are turned counter-clockwise to loosen them, as you might have guessed. With left-hand fasteners just the opposite is true when tightening them or loosening them.We make left hand fasteners for special purposes. We'd have to have a reason to make "backwards" threads on a fastener, wouldn't we? We do, and most applications where we see left-hand threaded fasteners involve attaching rotating parts. A lawn mower blade is a good example, and by looking at the physics, it will become obvious.A lot of blades on lawn mowers attach to the shaft of the motor with a nut or a bolt. You know the machine we're talking about. The motor shaft points straight down, and the blade is a "cutter bar" with the ends sharpened. Anyway, if the motor on the machine turns clockwise (looking at the motor from the bottom where the blade is attached), using a fastener that turns clockwise to tighten it (a right-hand threaded fastener) sets the stage for a problem. Roll up your sleeves and look at the physics.When the motor starts, it "torques" the shaft clockwise. The blade and the fastener that hold the blade are likewise torqued clockwise. But consider mean old inertia. Inertia is the name we give to the phenomenon associated with objects that have mass (like the fastener that holds the blade on). If a body is at rest, it wants to remain at rest. If it's in motion, it wants to remain in motion. Force is necessary to change the motion of a mass because of inertia. That said, let's focus on the bolt that holds the blade on the motor.If the bolt on the motor shaft of a lawn mower turns clockwise and a right-hand threaded bolt holds the blade on, the inertia of the bolt when it's at rest makes it "resist" the torque of the motor, which is clockwise. The effect on the bolt is that the bolt's inertia makes it want to turn counter-clockwise. And counter-clockwise is the direction we'd turn the fastener to take it off. If the motor is started time and time again, it applies a little torque in the "wrong" direction to the bolt that holds the blade on. If the bolt ever becomes a bit loose, it can easily be spun off, which will cause the blade to detach. If the blade comes off while the machine is running at speed, that blade becomes a lethal projectile.Left-hand threads are applied in a number of applications, and most involve rotating parts. It costs more to make left-hand threaded fasteners because the volume in which they are produced is lower. The economy of scale makes the right-hand threaded fasteners cheaper, and they would be a manufacturers choice if not for the engineering considerations associated with the rotating parts of a machine. Left-hand threaded fasteners are made for a specific application where right-hand threaded fasteners would be a fool's choice.
What are the applications of fasteners?
A fastener is a hardware device that mechanically joins or affixes two or more objects together. Applications Of Fasteners: Fasteners for Marine engineering Fasteners for Furnaces and gas turbines Fasteners for Chemical processing plants Fasteners for Boiler and pressure vessels Fasteners for Nuclear power plants Fasteners for Industrial Use for more information - visit - ananka fasteners Fastener Manufacturer in India Ananka Fasteners is the leading Fastener manufacturer in india. They manufacture the best quality fasteners which are supplied and exported nationwide. Ananka Fasteners products are specifically popular for their Strength, Durability & Quality. Ananka Fasteners are available at cost-effective prices and are highly popular in the nation and the global market. Hence, ananka fasteners is the top fastener manufacturers worldwide and also a certified fastener supplier in mumbai. We also deal in Nuts, Bolts, Screws, Rods, High Tensile Fasteners, Carbon Steel Fasteners, Stainless Steel Fasteners. They are leading Allen Bolt Manufacturer in India and export pan india. They also are hex bolts manufacturer, eye bolts manufacturer, anchor bolts manufacturer, stud bolts manufacturer etc. Fasteners are manufactured with high precision at Ananka Fasteners. Therefore, Ananka Fasteners is the leading Fasteners manufacturer in india which makes them the best fastener manufacturer in mumbai. For more information - Product page - fastener manufacturer in india
Is the District V2 deck threaded?
No deck is threaded it is the headset and the forks that can be threaded or threadless
What is Threaded Flange?
A flange threaded in center used for weld or different types of threaded pipe.
