The Stainless Steel Split Pin (commonly known as a cotter pin) is an essential mechanical fastener used to secure components on shafts, axles, and clevis pins. By inserting the pin through a pre-drilled hole and bending the tines outward, it creates a robust mechanical lock that prevents nuts from loosening and parts from shifting during operation.
At Tianqi Fasteners, our split pins are manufactured from high-grade stainless steel, providing a perfect balance of ductility and structural strength. This material choice ensures that the pins can be easily manipulated during installation while offering superior resistance to rust and environmental degradation. These fasteners are widely used across the automotive, marine, and industrial machinery sectors to ensure the safety and longevity of moving assemblies.
Manufactured from premium stainless steel, these split pins offer exceptional resistance to corrosion, oxidation, and wear. They are suitable for both indoor and outdoor applications, including high-moisture and mildly corrosive industrial environments.
When paired with a castle nut or slotted nut, the Stainless Steel Split Pin acts as a definitive locking mechanism. It prevents the fastener from backing off due to heavy vibrations, shocks, or rotational forces, which is critical for safety-sensitive automotive and aerospace assemblies.
The design features a bulbous head and two tines (one typically longer than the other) for easy insertion. Installation requires only a pair of pliers or a hammer to spread the ends, making it one of the most cost-effective and efficient locking solutions available.
Our pins are engineered to meet international standards such as GB91. This ensures consistent dimensions, tolerances, and material quality, allowing them to integrate seamlessly with standard clevis pins, bolts, and shafts.
Whether for marine hardware, agricultural machinery, or consumer electronics, the 304 Stainless Steel Cotter Pin Card provides a clean, non-magnetic, and aesthetically pleasing finish that does not require additional plating or coatings.
