Thread Size: 12mm; Thread Pitch: 1.75mm; Widely used in automotive, furniture, decoration and other electrical and industrial products. It can be used in air conditioning, fire fighting, gas, etc and can also be used in medicine beverage food chemical industry and metal sheets. Material: High Quality Carbon Steel with Zinc Plated, great strength and good corrosion resistance to make fasteners last! 10Pcs M12 x 22mm Carbon Steel Rivet Nut Insert, Zinc Plated Finish, Flat Head Threaded Rivnut Insert Flat Head Rivet Nutsert