Mostly out of sight and out of mind, rivet nuts are an essential part of the mechanic's tool kit. Unlike weld nuts that easily melt or get cross-threaded during operation, blind rivet nuts provide reliable quality threading in a wide range of substrates without distortion or need for welding.

This 340-piece set by CO-Z covers the most commonly needed SAE and metric sizes of rivet nuts, giving you 50 #8-32 and #10-24 rivnuts, 42 1/4"-20 rivnuts, 10 5/16"-18 rivnuts, 8 3/8"-16 rivnuts, 45 M3 rivnuts, 40 M4 and M5 rivnuts, 30 M6 rivnuts, 15 M8 rivnuts, and 10 M10 rivnuts to give you a compact resource as you work. These are all organized and labeled in their two provided plastic cases for easy transport and use for home improvement or commercial application in the automotive, aviation, furniture, decoration, and other industries. The SAE nuts are made of galvanized carbon steel and the metric ones from 304 stainless steel, both giving you corrosion-free and wearproof performance that will long outlast their competition. Their superior strength allows use with any plastic, wood, rubber, aluminum, or other metal sheets and pipes.

Functional, portable, organized, and long-lasting, CO-Z's set of 340 rivet nuts insert quickly with any standard rivet gun and is an essential resource not to be missed.