Seachoice 5/16 In. Steel Zinc-Plated Lock Pin

Solid zinc-plated steel lock pin. Fits 2 In. (5.08 cm) and 3 In. (7.62 cm) couplers. 5/16 In. (.79 cm) diameter pin. Keeps coupler release handle from disengaging while in travel. Although a good safety feature it will not prevent theft. Also used with detachable trailer jack wheels.