Details: Master Lock 3870 High Security King Pin Lock

Secures the king pin of semi-trailers, RVs and other fifth wheel trailers
- Renders bolt cutters useless
High grade aluminum is lightweight while providing high security
High visibility red body and durable flag alert drivers that lock is attached
Includes an integrated No. 6121 5-pin w6000 cylinder lock with all of its security and keying flexibility

Model/SKU	Attributes
3870	None, Non-Key Retaining, Keyed Different, Included
3870WO	None, Non-Key Retaining, Keyed Different, King Pin Lock Without Cylinder
3870UN	None, Non-Key Retaining, Uncombined, Included
3870UNWO	None, Non-Key Retaining, Uncombined, King Pin Lock Without Cylinder
3870KZ	None, Non-Key Retaining, Zero-Bitted, Included
3870KZWO	None, Non-Key Retaining, Zero-Bitted, King Pin Lock Without Cylinder
3870KA	None, Non-Key Retaining, Keyed Alike, Included
3870KAWO	None, Non-Key Retaining, Keyed Alike, King Pin Lock Without Cylinder
3870MK	None, Non-Key Retaining, Master Keyed, Included
3870MKWO	None, Non-Key Retaining, Master Keyed, King Pin Lock Without Cylinder
3870KAMK	None, Non-Key Retaining, Keyed Alike; Maaster Keyed, Included
3870KAMKWO	None, Non-Key Retaining, Keyed Alike; Maaster Keyed, King Pin Lock Without Cylinder
3870NR	None, Non-Removable Key, Keyed Different, Included
3870NRWO	None, Non-Removable Key, Keyed Different, King Pin Lock Without Cylinder
3870NRUN	None, Non-Removable Key, Uncombined, Included