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Master Lock - (4) Keyed Alike Trailer & Multi Purpose Padlocks, 37KA-4
This listing is for FOUR (4) padlocks keyed alike (same key unlocks all four) and eight keys. These padlocks are ideal for all outdoor applications when needing multiple locks that utilize ONLY one key. To fit coupler latch remove the shackle sleeve. Shackle fits standard opening of 9/32 (7mm). Note that non-rigid shackle has enough play to fit virtually all coupler latches less than 7/8 wide. IMPORTANT NOTE - If using this style lock on a trailers coupler latch please be aware it is NOT recommended for all 2-5/16 couplers. It will fit some 2-5/16 couplers

Price is $52.00
Price: $52.18