What order do washers and bolts go in?

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.

Which way does the flat side of a washer go?

There is no fixed rule about which side goes up and which goes down, but given the issue of bearing surface pressure mentioned above, it’s more effective to put the burred side facing down.

What are bolts with washers called?

A machine screw is a screw or bolt with a flat point. Available in a variety of drive types and heads, they fit a wide variety of applications. Often driven into tapped holes. Used with nuts and washers, also known as “stove bolts” or “stovers”.

Which way do star washers go?

2 Answers. The jagged side should be to the bolt nut, not the washer. You’re trying to prevent the bolt nut from turning, thus unscrewing. The jagged side will, to a small degree, bite into the metal of the bolt to increase the holding power.

What are the types of washer?

What are the different types of washers?

Type of Washer	Description
Countersunk	Allows flat or oval head countersunk screws to be flush
Fender	Large outside diameter provides extra wide bearing surface
Flat	The most common type of washer, with two flat surfaces
Sealing	Made of relatively soft materials

Why are washers directional?

They are intended to prevent a fastener from loosening. These are washers with serrations that extend radially (inward or outward) to bite into the surface of the component. By design, they are supposed to “dig in” to the bolt head/nut and the substrate to prevent the fastener from loosening.

What do you call a bolt with threads on both ends?

Threaded Fastener
Common Fastener Related Terminology

Term	Definition
Threaded Fastener	Any fastener with threads, such as a screw or bolt.
Truss Head	An extra wide low profile head with a slightly rounded top surface.
U Bolt	A bolt in the shape of a U, threaded on both ends.

What is a bolt with threads on both ends?

Also known simply as a stud, a threaded rod is a metal fastener — typically made of stainless steel — that’s characterized by the presence of threading on both ends. Depending on the specific type of threaded rod, the threading may extend just partially, or it may extend all the way.