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Lockey SUMO SGL-SS Heavy-Duty Gravity Latch

The Lockey SUMO SGL-SS is a heavy-duty single-sided gravity gate latch for pedestrian gates. The SGL-SS prevents safety incidents because it limits access to the pull side only. Features include:
  • pull-to-open action eliminates lever handles
  • can be locked or unlocked with a key
  • Schlage 6 pin, rekeyable
  • key completely prevents access to the gate
  • latching mechanism has two independent hooks that eliminate jamming
  • gate can only be opened from the pull side (for access from both sides, see SUMO SGL-DS Gravity Latch, Double Sided)
  • easily mounted on metal, vinyl, and wood gates
  • adjustable vertically and horizontally
  • stainless steel, aluminum and non-rusting fiber-reinforced polymers
  • Limited Lifetime Warranty


Dimensions & Specifications

  1. Dimensions: 3.75 x 1.5 x 5.75 inches
  2. Materials: Non-rusting: polymers, aluminum, stainless steel
  3. Gate Material: Metal, Vinyl & Wood gates
  4. Vertical & Horizontal adjustment
  5. 2 keys provided
  6. Minimum Post Size: 1”
  7. Minimum Gate Gap: ½”
  8. Maximum Gate Gap: 1 ¼”
  9. Ideal Gate Gap: ¾”
  10. Color: Black
  11. Lock Type: Rekeyable
  12. Weight: 1.05 lbs.
  13. Limited Lifetime Warranty


Brand-New, Authentic, Manufacturer-Authorized,
and Full Warranty GUARANTEED!  check

Starting at: $44.31   MSRP: $59.08

SALE:  $44.31
Save: 25% off
(MAP) check

Select the Options You Want:



  • DOOR/GATE TYPE: locks for standard doors/gates that swing and are made of wood/vinyl/glass/metal, with/without vertical posts or pickets.
  • FINISHES: black.
  • GATE HARDWARE: misc hardware for gates (closers, gate stops, handles, etc.).
  • INSTALLATION: surface-mounted on door or gate.
  • KEY: can be keyed alike; comes with 2 keys.
  • KEY CYLINDER: Schlage C6.
  • LOCKS FOR ...: economical locks designed for residential/light commercial use with fewer features, fewer users, and light traffic; locks designed for property owners/managers for Airbnb/VRBO markets with many users, schedules, and remote management features; locks for commercial/business usage with advanced features, many users, high traffic, and heavy-duty components; locks that are designed for exposure to ocean or road salt.
  • MODES: Locks automatically.
  • NETWORK: none (standalone).
  • POWER: none, this product is mechanical.
  • PRODUCT LINE: Lockey Gate Locks & Accessories.
  • SECURITY LEVEL: locks come with key cylinder (aka key override) that might/might not be pickable or bumpable.
  • WARRANTY: Life-Time Mechanical Warranty.
  • WEATHER RESISTANCE: Locks that can be exposed to the weather on both the outside and the inside.


  1. The keyed sided is usually installed on the inside, but could be used on either side.

  2. If you use the metal key to lock this device, you will need to use the key to unlock it before you can open it. If you can reach over or through the gate, this could be done from either side.

  3. There is knob on the keyed side, but there is no handle or knob on the non-keyed side. Therefore, if the SUMO SGL-SS has not been locked with the metal key:

    1. Someone on the keyed side will always be able to open the gate by simply pulling out the knob (circled in red below).

    2. Someone on the non-keyed side might be able to open the gate by reaching over or through the gate, if that is possible, and pulling out the knob.
      Lockey SUMO SGL-SS Heavy-Duty Gravity Latch

  4. Whenever the gate is closed with even just a little pressure, the rod will automatically push up the 2-pronged hooks (circled in blue) and latch the gate closed. 

  5. To be sure that the gate was always latched, simply install a gate closer. Here are two light-duty gate closers. (To see our full line, type "gate closer" into the search box at the top of every page.)

    Lockey TB100
    Turtle Back Hydraulic Gate Closer
    Lockey TB175
    Hydraulic Garden Gate Closer
    Lockey TB100 Turtle Back Hydraulic Gate Closer Lockey TB175 Hydraulic Garden Gate Closer

Life-Time Mechanical Warranty 30-Day Money Back Guarantee All Weather All Mechanical-needs no electricity
Google Product Category: 503730 - Hardware > Locks & Keys > Locks & Latches