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Cylindrical Rivet nuts
RIVET NUTS

Rivet Nuts also called insert nuts.
Threated fasteners used to joint two sheets - Easily installed with an hand or power riveting tool - Rivet nuts provide good resistance to pull-out and torque-out - You will find here a large selection of thread size, length and grip ranges :

Cylindrical Rivet Nuts
Groved Rivet Nuts