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Encyclopedia of Fasteners & Hardware Items
Courtesy of FastenerMart.com
— RIVETS & RIVNUTS —
Blind Rivets
Also Called: POP Rivets, Nail Rivets, Breakstem Fasteners, Blind Fasteners
  Blind Rivets are so named because they are used in applications where only one side of a work surface is accessible. They consist of two parts--the rivet and the setting mandrel--and require a tool for setting. The rivet does the actual fastening; the mandrel is discarded after installation. - Head Styles: Dome style offer a low profile and neat appearance and are the most versatile. Large Flange style are similar to dome style but the head diameter is larger. Countersunk style are ideal when a flush surface installation is needed because they have a 120 degree angled head.
- End Styles: Most blind rivets are Open End, which means that the rivet body is completely hollow. Closed End Rivets, compared to open end rivets of the same size and material, offer superior shear and tensile strengths. Closed End Rivets feature a special solid end that seals tightly, resisting intrusion by either liquids or vapors.
- Special Materials: Stainless Steel offers corrosion resistance, and withstands exposure to certain chemicals and solvents. Copper rivets are non-magnetic and are ideal for marine applications because they are corrosion-resistant (mandrels are made of carbon steel).
- Shear & Tensile Strengths: Aluminum Rivets & Aluminum Mandrels have the lowest shear and tensile strengths. Aluminum Rivets & Steel Mandrels offer higher strength, and Steel Rivet & Steel Mandrel are even better. Stainless Steel Rivet & Stainless Steel Mandrels offer the highest shear and tensile strengths. Closed End Rivets, compared to open end rivets of the same size and material, provide greater shear and tensile strength.
- Installation: First, determine either the total thickness of the material being joined or the grip range needed. Then choose a rivet diameter that matches the rivet tool's nosepiece size. Once the rivet is inserted through the hole in the material being joined, grip the mandrel by the jaws of the rivet tool. Finally, pull the lever (or "trigger") of the tool to set the rivet. (The rivet is set by pulling the mandrel into the rivet, making it expand to form a strong, tight, reliable joint.) The mandrel will break off at a predetermined setting force.
Best results are achieved when the fastening material and the rivet material are matched. Blind rivet washers (backup washers) give extra support when fastening soft materials and in applications that require a larger diameter surface to prevent pull-out (please see separate listing for backup washers).
Drive Pin Rivets
Also Called: Drive Rivets
  Drive Pin Rivets, installed quickly and easily with a common hammer, are used for fastening a wide variety of materials...as a through fastener, passing through and clinching behind metal sheets, for example, or fastening blind into wood or other low density materials. Just insert the rivet and then hit the pin with a hammer.
Multi Grip Blind Rivets
Also Called: POP Rivets
 Designed for use with a wider range of material thicknesses, these rivets are similar to standard blind rivets. Multi Grip Blind Rivets work in irregular and oversized holes and provide optimum clamp-up force, aside from their wide grip range. They are inherently vibration resistant, and their design makes them moisture resistant.
Rivnuts
Also Called: Blind Rivet Nuts
 Rivnuts are tubular blind rivets with internal threads that are commonly used when the material is too thin to tap. Available for different screw sizes and in a variety of grip ranges, they install in seconds from one side of the material. A hand or power tool causes the shank to expand creating a backside flange that results in a secure and permanent fit. Since the nut is open at the bottom, long screws may be used if necessary.
Solid Rivets
Also Called: Rivets
  Solid Rivets are available in aluminum, steel and 304 stainless steel. Head styles include Full Brazier, Modified Brazier, Flat Countersunk, Round and Universal. Measure length from under the head for all styles except Flat Countersunk, which is measured from the top of the head.
T Rivets
Also Called: Cherry Multi-Grip T Rivet, T Rivet Fastening System
 T Rivets are vibration-resistant and provide high shear values and tensile strength. Because of their high clamp-up ability, they will draw sheets together firmly even when they are 3/16" apart.
Ultra Grip Rivets
Also Called: POP Rivets
 Ultra Grip Rivets feature a positive mechanical locking system that yields superior holding power. Mandrel retention can be visually verified, and the locking feature prevents the mandrel from loosening due to vibration.
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