What happened with the camloc latch 51L3B-1-1AA?

51L3B-1-1AA  is not available anymore and obsolete. The product you currently have, is a latch with the extra feature of a hasp. So I guess you need  the hasp locking feature again. The new part number I would recommend is the following V951L01-1Y5AGV This latch is adjustable +/-4mm This latch comes with a hasp with diameter 6mm, please verify what 51L3B-1-1AA has. This latch has holes with a diameter of 4,2mm (your current holes are smaller, this means you will have to change towards bigger rivets to fasten them) The distance between the mounting holes is although smaller, and is 12,7mm There is also another mounting method which is to weld, then it is part number V951L01-1Y2AGV   The drawhook = strike that goes together with this latch. Your current latch 51L3B-1-1AA is made for 500 pounds which is 2224 Newton The latch we offer has an ultimate tensile strength of 2300 Newton, in case you use the strike V951L7-*AGV V951L7-5AGV    comes with the same holes of 4,2mm V951L7-1AGV    comes with smaller holes of 3,6mm V951L7-2AZ        comes without holes   One good thing for sure, is that you change from cadmium plating to a more environmental friendly zinc plating that has been improved in the meantime. More information: https://anemo.eu/whats-resistance-against-galvanic-corrosion-zinc-plated-camloc-parts another discontinued part: 51L3-3-2E is a reverse base regular version latch with lift spring with holes of 3,25mm-3,4mm, it is discontinued, please use the new compatible V951L series that are equipped without lift spring. Not sure what the E stands for, it could be zinc plated or Aluminium, however Aluminium is not produced anymore. So the new compatible latch would be V951L03-1-1AGV that have hole diameter of 3,6mm It could be that the latch needs a nice appearance then we would recommend V951L03-1-1AD that is chrome plated.   The strike 51L7-3BF is a stainless steel strike with holes between 3,56mm-3,76mm and discontinued. New compatible part is V951L7-1BP that come with holes of 3,6mm Not sure why the customer might have opted for a stainless steel strike and not his latch, So please use V951L03-1-1BP too which is the stainless steel version of the latch. ***************** 51L3-3-2BC This is a stainless steel regular version reverse base latch with holes 136/128 3,45mm-3,25mm They are equipped with a lift spring.   This lift spring does not exist anymore in the new V951L series.   The same part without lift spring is part V951L03-1-1BP  ; take care: the holes are 3,6mm So you’ll have to advise to your customer to use bigger rivets to mount them