Description
The Master Lock No. 377DAT features a trailer coupler lock, designed to fit 1-7/8 inch (48mm), 2 inch (51mm) and most 2-5/16 inch (59mm) trailer couplers. The advanced locking mechanism provides resistance to picking and prying. This product has a nickel-plated, zinc die-cast body with a front access key-way for ease of accessibility. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.
Designed to fit 1-7/8 inch (48mm), 2 inch (51mm) and most 2-5/16 inch (59mm) trailer couplers
Advanced locking mechanism provides resistance to picking and prying
Front access key-way for ease of accessibility
Nickel-plated, zinc die-cast body






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