The rivet nut is a one-piece tubular rivet with internal threads and a countersunk head that can be installed while working entirely on one side of the panel.
Rivet nuts are available in aluminium, steel, stainless steel, monel and brass.
Fasteners are available in aluminium, steel, stainless steel, monel and brass. “The most popular material is galvanized steel, but if you’re particularly concerned about corrosion, you can choose stainless steel,” said Richard J. Kull, manager of rivets at PennEngineering. “Stainless steel rivets are commonly used in solar panels.” installations and other outdoor equipment.
One fastener size can often fit a wide range of grips. For example, PennEngineering’s 0.42″ SpinTite rivet nuts provide a grip range of 0.02″ to 0.08″. The 1.45″ long rivet nut has a grip range of 0.35″ to 0.5″.
Rivet nuts are available with different head types. The wide front flange provides a large bearing surface. This will strengthen the hole and prevent bursting. Sealant can also be applied under the flange for weather protection. The thick flanges can be used as spacers and provide extra push-out strength. Countersunk and low profile heads provide flush or near flush mounting. A wedge or knurl under the head is designed to cut into the mating material and prevent the fastener from turning in the hole.
“Wedge heads are great for soft materials like plastic, fiberglass and aluminium,” Kuhl says. “However, rivet nuts are annealed, so they are relatively soft. Wedges will not be very effective on steel parts.”
Rivet nuts also come in different types. Standard rivet nuts are cylindrical and plain, but options include slotted, square, and hex. All of these changes are for the same purpose: to prevent fasteners from turning in holes, especially in softer materials such as aluminum and plastic.
Post time: Oct-25-2022
