McMaster-Carr logo
    Filter by
    For Maximum Trailer Weight
    Mount Type
    Ball Diameter
    Tongue Width
    Mounting Hole Diameter
    Hitch Coupler Type
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Length
    Maximum Shackle Diameter
    Mounting Hole Center-to-Center
    Overall Height
    Overall Length
    Overall Width
    Body Material
    Body Finish
    Color
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    5 Products

    Hitch-Ball Couplers

    For an easy towing hookup, bolt or weld these couplers to a trailer. They connect to the hitch ball on a vehicle and secure with a lever latch. Maximum trailer weight is the total weight being towed.
    Bolt On—Straight
    Image of Product. Front orientation. Contains Annotated. Hitch-Ball Couplers. Bolt On—Straight.
    Straight couplers bolt to a single-channel trailer tongue.
    Lockable Lever—Couplers with a lockable lever help prevent accidental uncoupling while driving. They have a hole in the latch, so you can secure it with a pin, padlock, or coupler lock (sold separately). Some couplers include a pin.
    Couplers
    Coupler Locks
    Overall
    Mounting
    Hole
    For Max. Trailer
    Wt., lb.
    For Tongue
    Wd.
    For Ball
    Dia.
    Lg.
    Wd.
    Ht.
    Mounting Fasteners
    Included
    Dia.
    Ctr.-to-Ctr.
    Features
    For Max. Shackle
    Dia.
    Specs.
    Met
    Each
    Each
    2,0002"1 7/8"8 3/4"3 5/8"3 5/8"No3/8"2 1/4"Lockable Lever5/16"SAE J6842743T20000002743T8000000

    Hitch-Ball Coupler Locks

    Image of Product. Back orientation. Hitch-Ball Coupler Locks. Style B.
    Image of Product. Front orientation. Hitch-Ball Coupler Locks. Style C.

    Style B

    Style C

    Insert these locks into the hitch-ball coupler latch or socket on your trailer to prevent theft. Each lock is plated or powder-coated to stand up to weather, so you can use them on outdoor trailers without worrying about corrosion.
    Style B
    Image of ProductInUse. Front orientation. Hitch-Ball Coupler Locks. Style B.
    Image of Product. Back orientation. Hitch-Ball Coupler Locks. Style B.
    Style B locks block access to the socket, so no one can hitch your trailer without the key. These locks are a good choice when your trailer is unhitched from your vehicle, such as during drop-offs or while in storage. They are one piece and compact for easy installation and storage. Made of aluminum, they resist corrosion better than steel locks.
    Keyed Differently—Choose keyed differently locks if you need locks that each open with a different key.
    Keying
    For Ball Dia.
    Ht.
    Wd.
    Dp.
    No. of Keys
    Included
    Each
    Solid Powder-Coated Aluminum Body
     
    Red Body
    Keyed Differently1 7/8", 2", 2 5/16"4 5/8"3 1/4"3 3/4"26965N11000000
     
    Style C
    Image of ProductInUse. Front orientation. Hitch-Ball Coupler Locks. Style C.
    Image of Product. Front orientation. Hitch-Ball Coupler Locks. Style C.
    Style C locks block access to the socket, so no one can hitch your trailer without the key. These locks are a good choice when your trailer is unhitched from your vehicle, such as during drop-offs or while in storage. They can also be used on ring-type hitches. Made of two hardened steel pieces, they’re heavy duty and stand up to attempts to cut them open better than aluminum locks.
    Keyed Alike—Choose keyed alike locks if you need several locks that open with the same key.
    Keyed Differently—Choose keyed differently locks if you need locks that each open with a different key.
    Keying
    For Ball Dia.
    Ht.
    Wd.
    Dp.
    No. of Keys
    Included
    Key
    No.
    Each
    Solid Hardened Powder-Coated Steel Body
     
    Red Body
    Keyed Alike1 7/8", 2", 2 5/16"7"5"6"2461576965N120000000
    Keyed Differently1 7/8", 2", 2 5/16"7"5"6"2—6965N13000000
     
    back to top