Which type of bolts is mostly used?

The principal types of bolts commonly used include: Anchor Bolts. Blind Bolts. Carriage Bolts.

Why is a washer used with a bolt?

washer, machine component that is used in conjunction with a screw fastener such as a bolt and nut and that usually serves either to keep the screw from loosening or to distribute the load from the nut or bolt head over a larger area. To prevent loosening, several other types of washers are used.

Can a nut be used as a washer?

Load Distribution The primary purpose of most washers is to evenly distribute the load of the threaded fastener with which they are used. Threaded fasteners stress the material in which they are driven. Driving a screw into wood, for example, may cause the wood to crack around the surface.

Where does a washer go with a bolt?

If there is only one washer used with a nut/bolt, it usually goes on the nut side. The nut in most circumstances is more movable, and is more commonly turned to tighten the assembly. The washer helps prevent damage to the surface of the object being fastened.

What is bolt and types of bolt?

Elevator bolt – Bolt with a large flat head used in conveyor system setups. Hanger bolt – Bolt that has no head, machine threaded body followed by a wood threaded screw tip. Allow nuts to be attached to what is really a screw. Hex bolt – Bolt with a hexagonal head and threaded body.

How many types of bolts and nuts are there?

A threaded bolt screws into nuts to hold or fasten materials together. Bolt types include eye bolts, wheel bolts and machine bolts while types of nuts include cap nuts, expansion nuts and u-nuts.

What is the difference between Type A and Type B washers?

Type A is a series of steel washers with broad tolerances, where precision is NOT critical. Type B is a series of flat washers with tighter tolerances where outside diameters are categorized as Narrow, Regular or Wide for specific bolt sizes.

What are Grade 5 bolts used for?

These bolts are generally used for non-critical joints and applications. A grade 5 bolt is distinguished by 3 radial lines and promises tensile strengths between 105,000 and 120,000 psi. They are most commonly found in automotive applications.

What is washer in washing machine?

With washing machine you don’t have to rub the clothes with hand or squeeze them to remove the water from them. The washing machine is also called as clothes washer or simply the washer. All you have to do is put the clothes in the machine and select the wash mode.

What are the different types of washers?

There are three main types of washers: plain washers, spring washers and lock washers. Within each of these categories are more specialized forms that serve unique purposes.

Does flat washer go on bolt or nut side?

Unlike flat washers, which are placed on both the bolt and nut side, spring washers only go on the nut side of the fastener to establish a bond. A spring washer offers axial flexibility that’s intended to prevent loosening of the fastener with which it’s paired.

What is a machine bolt?

Definition of machine bolt : a metal rod with a usually square or hexagonal wrench head at one end and threads at the other that is commonly available in a size range of from ¹/₄ inch to 3 inches in diameter.

What are the different grades of hex nuts and washers?

Nuts and Washers Grade of Bolt A194 Heavy Hex Nut Grade A320 Grade L7 4 or 7 A320 Grade L7M 7M A320 Grade B8 (Class 1 and 2) 8 A320 Grade B8M (Class 1 and 2) 8M

What is the purpose of a washer on a bolt?

Often the fastener will need a washer between the nut and the bolt to distribute the load. Sometimes washers are used between the bolt head and the material without a nut. Washers reduce the wear on the hole and stop the inward pressure on softer materials. In addition, the washer can stop the bolt from coming undone.

What grade of hex nut is used in A320 bolts?

A320 bolts will use A194 heavy hex nuts. There are multiple grades within the A194 specification. The appropriate grade of A194 nut will be determined by the chemistry and strength of the fastener grade. The chart below matches the compatible grade of nut with the specific grade of bolt.

How to fix loose nuts and bolts in a transformer?

If the transformer is vibrating enough to shake nuts and bolts loose, it needs looking at. Talk to the manufacturers, and get the vibration measured. My preferred bolting method is to use passivated, plated, nuts and bolts.