Master Lock 388KA Keyed Alike King Pin Lock 5/8 Inch

The Master Lock 388KA is a heavy-duty keyed alike king pin lock designed specifically for securing semi-trailers to tractor units. This professional-grade lock prevents unauthorized trailer separation and theft by securing the trailer's king pin.

Key Features:

• 5/8 inch pin diameter provides robust security for standard king pin applications
• Keyed alike system allows one key to operate multiple locks for fleet convenience
• Durable cylinder lock mechanism with integrated padlock design
• Hardened steel construction resists cutting, sawing, and drilling
• Weather-resistant design for reliable outdoor performance
• Bright yellow finish for high visibility and theft deterrence

Ideal for trucking fleets, shipping yards, and commercial transportation operations where consistent keying across multiple security points is essential. The keyed alike feature eliminates the need for drivers to manage multiple keys while maintaining security across an entire fleet.