Product Description
1/4" diameter zinc plated steel cotter pins, also commonly known as split pins, available in a 3" overall length.
These heavy-duty split pins provide a simple and reliable method of retaining castellated nuts, clevis pins, shafts, linkages, axles and other drilled components. Once inserted through the retaining hole, the two legs are bent apart to help prevent the pin from becoming dislodged.
- Nominal diameter: 1/4"
- Approximate metric diameter: 6.3mm
- Overall length: 3"
- Approximate metric length: 76mm
- Material: Steel
- Finish: Zinc plated
- Product type: Cotter pin / split pin
- Installation method: Insert through a drilled hole and bend the legs apart
- Pack sizes available: 1, 5, 10, 20, 50, 100, 250, 500 and 1000
| Diameter × Length | Approx. Metric Size | Material | Finish | Product Type |
|---|---|---|---|---|
| 1/4" × 3" | 6.3mm × 76mm | Steel | Zinc Plated | Cotter Pin / Split Pin |
These large cotter split pins are suitable for agricultural machinery, trailers, plant equipment, automotive assemblies, engineering, heavy machinery, pivot points and general maintenance applications.
Zinc plating provides general corrosion resistance for indoor and sheltered applications. For prolonged outdoor, marine, coastal or highly corrosive environments, stainless steel split pins may be more suitable.
Split pins are normally considered single-use retaining components. Once removed, straightened or repeatedly bent, they should be replaced rather than reused, particularly in safety-critical or heavily loaded applications.
Always ensure the split pin diameter and length are compatible with the drilled hole and the component being retained. The legs should extend sufficiently beyond the hole to allow secure bending after installation.
Please note: Sizes are approximate and specifications are intended as a guide only. If dimensions or suitability are critical to your project, please check with us before ordering.

| A | B | C | D |
| 1/4" | 3" | 6.3mm | 76mm |
Please Note: Specifications given are intended as a guide only. If critical to your project please check with us first.