Helpful tips

How do you use washer nuts and bolts?

How do you use washer nuts and bolts?

To use your washer and bolt properly, first insert the bolt into the washer. Next, slide the bolt and washer into the mounting hole. Once the bolt is threaded into the hole, begin turning the head of the bolt using the appropriate sized wrench. Tighten the bolt down to the washer until the head contacts the washer.

Where should lock washers be placed?

Place the lock washer under the threaded fastener and ensure that it has a snug fit. If using a lock washer with teeth, make sure they will engage with the appropriate surfaces. If they don’t, swap out the washer for the appropriate one.

Does it matter which way a washer goes?

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.

Why do you use washers with bolts?

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. …

Do lock washers do anything?

They are still used on many applications in the belief that they will will “lock” the nut/bolt to the joint and prevent loosening. The body of evidence, based upon both experience and experimental results, is that they do not prevent loosening and can be shown to actually speed up the rate of loosening in many cases.

Which way does a concave washer go?

The side with the sharper edges goes towards the surface to be clamped. The rounded side goes towards the nut or bolt. If a split lock washer is also used it goes between the nut/bolt and the flat washer.

Do A325 bolts need washers?

For pretensioned joints, A325 bolts require a washer under the element (head or nut) being turned to tight- en the bolt. For pretensioned joints with specified base metal yield strength less than 40ksi, A490 and F2280 bolts require a washer under both the head and nut.

Where do you put the washer on a bolt?

Step 2. Place the first washer on the shaft of the bolt. If a lock washer is required, it will be placed on the bolt followed by a second standard washer.

Why do we use lock washers with bolts?

What is the purpose of a lock washer? A lock washer, in comparison to a regular metal one, is a special object that keeps nuts and bolts from slipping out of place. This is usually due to vibrations that occur on the surface or high levels of torque.

Where to place the first washer on a nut?

Determine the correct size and type of bolt, nut and washer for your application. This will depend on the type of connection being made, the materials being used, the strength of the bolt, standards and regulations for the application and a variety of other factors. Place the first washer on the shaft of the bolt.

Which is the nut side of a lock washer?

If you’re using a lock washer in any variety (including star type, split-ring type, or wavy type) to keep the nut or bolt from coming use, the washer is used on the side that’s most likely to turn and drive into the surface – which in most case is the nut.