SIZE: Each square shaft locking pin is 5/16 inches in diameter and 4 inches in length.
MATERIAL: Made of high quality carbon steel with durable galvanized finish for excellent rust and corrosion resistance, suitable for long-term outdoor use.
UPGRADED LENGTH: These trailer coupler pins have an overall length of 4 inches, longer length and more versatility.
EASY TO USE: Simply open or close the spring-loaded latch when installing or removing. Designed for quick and easy installation, these pins provide a convenient solution for attachment and fastening.
SECURE & SOLID: The trailer pin has a strong structure, with strong load-bearing capacity, not easy to loosen when in use, providing you with a solid and secure connection.
APPLICATIONS: Ideal for farm, garden, truck, boat, trailer coupler, PTO fittings, and many other locking applications.
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Square Trailer Hitch Pin
Our upgraded trailer pins (100 mm/4 inches, diameter: 8 mm/5/16 inches) can be used for a wide range of trailer connectors, as well as for trailer jack wheels, pintle hooks and more.