Southco Inc 91-552-07 Exposed-Base Under-Center Latch Southco Vintage-Downunder Latches, Exposed Base . F453Zinc Plated Steel. Exposed Mount. Medium Size. No Access Restriction. Under center latch adjusts up to one inch. Padlock or secondary catch option. Kick out feature moves unlatched hook from keeper. Type 300 series stainless steel. Note: Keepers not included and must be purchased separately. Average ultimate load 350 lbs.