This Swpeet clevis pin assortment is perfect for mechanics, machinists, and DIY enthusiasts! You get 44 pieces total with 12 different sizes covering M3, M4, and M5 diameters ranging from 10mm to 25mm in length. Made from 304 stainless steel, these pins are corrosion-resistant, durable, and won't rust like cheaper alternatives. The T-shape, flat head, and round designs work for various applications from machinery manufacturing to furniture assembly and home projects. Each pin has a chamfered end for easy insertion and holes for securing with cotter pins. They come in a handy compartmented plastic box that keeps everything organized - no more digging through messy parts drawers! Clevis pins are essential for hinge connections where parts need to pivot or move relative to each other. Whether you're working on automotive projects, industrial equipment, or creative DIY builds, having this assortment means you'll always have the right size pin on hand. The quality is professional-grade, and having multiple sizes organized in one case saves so much time compared to buying individual pins. This is one of those tool kit additions that pays for itself in convenience alone!