PTO locking pins from Koch Industries are yellow zinc-plated. They are available in either round or square wire retainers.
| Id | 299763 |
| SKU | 7479959 |
| PartNo | 4021581 |
| Type | Square Wire Retainer |
| Size | 5/16 In |
| Length | 3-1/2 In |
| Finish | Zinc-Plated |
| Color | Yellow |
| CID | 9 |