Description Quality fasteners for a variety of home and commercial applications, which will work perfectly as a replacement for lose part and lock into position. They can be used as a convenient way to adjust or remove accessories on equipment, just need to insert the pin into the corresponding hook slot and close it.-Safety Coupler Pin Features - Color: Silver. - Material: Carbon steel. - Size: 8.00X5.50X1.70cm/3.14X2.16X0.67in - Convenient and easy-to-use, secure your equipment, gear, trailer loads etc.-locking cotter pin - The shaft locking pin is for farming, gardening, truck, boat, trailer couplers, trailer jack wheel or other locking applications.-locking coupler pin - Square retainer wire clip provides a quick latch and added , different shape can meet your different needs.-trailer safety coupler pin