Features:【High Quality】 The rivet nuts are made of high-quality zinc plating on the iron surface. They are rust-resistant and corrosion-resistant and will last for a long time. The galvanized surface prevents surface damage and fading. They are equipped with anti-oxidation, healthy and lead-free, high-strength, non-deforming, load-bearing threads. They can be used in many types of materials, including steel, plastic, and fiberglass.【Portable Kit】These rivet nuts are very lightweight, making it easy to store and carry. 【Multi-Task】Rivet nuts are widely used in automotive, furniture, decoration and other electrical and industrial products, suitable for various occasions such as air conditioning, fire fighting, gas, or in the medical beverage chemical industry of food and sheet metal factory. Specifications:Material: Iron surface galvanizing/stainless steel. Size: M4/M5/M6/M8/M10/M12Package Included:20pcs Nut NutNote:Due to the different monitor and light effect, the actual color of the item may be slightly different from the color showed on the pictures.