Multiple Sizes Cotter Pin Set: 15 sizes, 150 pieces cotter pins in a transparent plastic box, each size with 10 pieces. We will deliver M1*8, M1*12, M1*20, M1.5*10, M1.5*16, M1.5*25, M2*10, M2*20, M2*30, M2.5*12, M2.5*20, M2.5*30, M3*12, M3*20, M3*30, coded by international standard GB91, hope to meet your various demands. A fastener: Cotter pin, designed to prevent loosening of threaded connections, commonly known as spring pin. To effectively lock the bolt and prevent its relative rotation. Durable Stainless Steel: Made of high quality stainless steel, relatively stable material and smooth surface, not easy to be corroded by acids and alkalis. Hard and long-term use. Wide Applications: These cotter pins are a kind of mechanical components, suitable for agricultural equipment, automobiles, garden tools, tractors, trucks and many other mechanical equipment that require fixing some parts. Be One of Your Repair Tools: One purchase can get 15 sizes of cotter pins, they are useful in