Benefits are their ability to resist vibration and can secure joints with short clamp lengths.A rivet has a pre-formed head at one head, called the factory head. A side effect of the extremely tight fit of the mandrel inside the interlock rivet is that interlock rivets are water tight.Because they are designed for maximum holding power, interlock rivets are found only in large sizes. They are more expensive than standard rivets, but when a long length is used on thin material they compact, leaving less material hanging off the back as shown below. The action of pulling the mandrel through the tube of the rivet flares out the "blind" side of the rivet, which is on the other side of the work pieces. POP Rivets are comprised of two pieces: the body and the mandrel. This is because rivets are more time-consuming to install and remove, offering limited clamp load.However, special-purpose riveting tools are required to install blind rivets.

From top to bottom: Solid rivet with universal head, solid rivet with countersunk head, and blind rivet.A rivet is a mechanical fastener with a plane unthreaded shaft that’s inserted through holes to join two or more parts together. Any Blind Rivet Will Do. This can be important as excess rivet length can lead to interference with moving parts.Interlock rivets are the most common type of 'structural' or high strength rivet. For this reason, Bolt Depot always recommends matching rivet and mandrel materials. Your shopping cart is empty. However, they are not water tight and are not as strong as some other rivet types.These rivets are similar to standard rivets except that the mandrel is completely enclosed. As the mandrel is pulled back it deforms the rivet pushing the sides outward until the mandrel snaps (Step 4). All Rights Reserved. The heads prevent axial movements of the parts, although less force is supported in this way.The function of a rivet is similar to that of a nut and bolt. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media. Semi-tubular rivets are solid over the main part of the shaft, which carries the shear load, but are hollow at the shop end to make it easier to form the shop head.In construction industries, such as when joining steel structures for bridges or steel-framed buildings, solid rivets have largely been replaced by bolts. By drawing the mandrel back through the rivet’s body, the factory head can be formed from the opposite side. Because of the many types of blind rivets available today, it’s important to … As the mandrel is pulled back it deforms the rivet pushing the sides outward until the mandrel snaps (Step 4). This expanded size forms the back side of the rivet holding the materials together.There are several common types of blind rivets each with its own advantages. A selection of rivets, shown after installation on the left and as supplied on the right. The shaft prevents any radial movements of the components.Depending on the type of rivet, and its ability to support shear load, it can resist considerable forces. This means it’s possible to install them from one side — or into a blind hole.

Considered standard, dome is the most common head style.A larger head typically used in softer materials to increase the load bearing area.Rivets are specified by the material of the rivet and the mandrel in that order. Lazy tongs are capable of installing strong rivets that require great force.Copyright © 2020 WTWH Media, LLC. The steel mandrel can corrode, weakening the connection and leaving ugly rust streaks coming out of the rivet. Blind rivets Blind rivets are hollow with a mandrel on a stem that runs through a central hole. Another head is formed after insertion and it’s referred to as the shop head. Blind rivets are installed in a tight hole that passes through the materials being riveted (Step 1 & 2). There are two types of rivet nuts: The first is designed to form a bulge on … The factory head is similar to the head at one end of a bolt while the shop head is like a nut, which forms a temporary head at the other end of a bolt.The end of a rivet’s shaft, which is formed into the shop head is called the tail. For more information on specific materials please see our The presence of steel can also lead to a galvanic reaction with the rivet or surrounding material. Unfortunately this can lead to problems in some environments. They are specifically designed to provide superior pull out and shear strength. As you can see from the cross section below part of the mandrel (orange) remains in the rivet (green) after installation. The two heads on each end of an installed rivet let it support tension loads (two forces pulling on opposite directions) and shear loads (the force is parallel to the surface or axis of the shaft).Automated drilling and riveting machines are also typical in aerospace manufacturing.