You simply need to hammer the mandrel and the rivet will expand from the bottom and lock itself with the support of the mandrel.įriction-lock rivets are those rivets which can be snaped from the shaft end if enough tension is applied. This kind of rivet is typically used in conditions where it is impossible to access the metal sheet’s back side because it has a built-in locking mechanism. This rivet is also known as a Drive rivet and hammer drive rivet. Drive-Pin Rivet-ĭrive-pin rivets are those that have a self-locking mechanism with the help of a mandrel pinned centrally. Stainless steel is commonly used to produce self-piercing rivets. The process involved to install self-piercing rivet. This rivet makes the joining of two metal sheets airtight from the inside by completely piercing the top layer and leaving the bottom layer just partially penetrated. This rivet has the self-piercing capability. Īs the name suggests, this rivet does not require a pre-hole to be present before being applied. They are primarily used on aeroplanes where aerodynamic drag is the main concern. This has a head height of 0.7d or top tampered area diameter is 1.6d with 15 ° of the neck angle.įlush rivets are those rivets which can stick to the metal surface and can not go above the surface level, known as a flush rivet. This rivet comes with a little bit of complex design having a neck angle of 60 ° with 0.125d of length from neck to bottom(Shank) including a head height of 0.8d. This requires less force to penetrate than solid rivets. Round, flat and solid cylindrical in design, is perfectly suitable for fastening joints, rotating parts and other industrial needs. These rivets are three types, based on their neck angle. It is used in countersunk or dimpled holes and mostly in aircraft for aerodynamic flexibilities. Materials are used to manufacture these rivets aluminium alloys, titanium, and nickel alloys.Ĭountersunk head rivets are used where the top surface of the plate is required to be free from projecting rivet heads. Pan heads are used in Heavy structural work to provide maximum strength and grip.Ī mushroom head is used to deduce the rivet head height on the metal surface and provides the locking needed for maximum strength.Īs the name suggests, these rivets are mushroom-like heads and have a lower profile than standard rivets. This can be made up of carbon steel, brass, copper, aluminium and stainless steel with a length range from 6mm to 100mm in general. It has the unique design of a slightly rounded head and slopping down from the top of the head(see diagram) to provide a tighter grip during the fastening process. The diameter of the Shank is approx 1.6d and the length of the head is 0.7d. These rivets are widely used and meet the requirement of various industries like the manufacturing and construction industries to provide maximum strength in general. Snap head or cup head rivet is the most commonly used rivet and it gives a very strong joint. Read More- Nut and Bolts- Definition, Types, Differences, Shapes & Sizes This is also known as Hollow rivet, due to the hollow shape at the body end. This can also be used to fasten aluminium, thin metal sheets, plastics, leather and on the pivot points where movement is required. It is used to drill in shoes and file covers etc. Tubular’s shank is hollow in nature and the rest is just similar to the solid rivet. The common uses of these rivets refer to brittle and soft materials, electrical parts, automobiles, hand tools, locks, and home appliances etc.Ĭommonly, It is also known as POP and Break stem rivet. Metal sheets and other hard materials are fastening through blind rivets with the help of the rivet-gun.
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