Buy Magnetic Catch | MAGS259A | Essentra Components US
Magnetic Quick Release Pins from Kipp - YouTube
1/2" dia. x 1/2" Lg., Tap - #10-24 x 1/4" dp., Max. pull - 5.3 lbs., One Pole Cyl. Magnet in an Alum: Lifting Accessories: Amazon.com: Industrial & Scientific